Maybe we have it backwards. The trumpets seals and plagues are what brings on the Sunday laws not vice versa.

It was impossible for the plagues to be poured out while Jesus officiated in the sanctuary; but as His work there is finished, and His intercession closes, there is nothing to stay the wrath of God, and it breaks with fury upon the shelterless head of the guilty sinner, who has slighted salvation and hated reproof. EW 280.

In that fearful time, after the close of Jesus' mediation, the saints were living in the sight of a holy God without an intercessor. Every case was decided, every jewel numbered. Jesus tarried a moment in the outer apartment of the heavenly sanctuary, and the sins which had been confessed while He was in the most holy place were placed upon Satan, the originator of sin, who must suffer their punishment. Then I saw Jesus lay off His priestly attire and clothe Himself with His most kingly robes. {EW 280}

I saw that none could share the "refreshing," unless they obtain the victory over every besetment, over pride, selfishness, love of the world, and over every wrong word and action. [This suggests those who receive the latter rain are sealed.] We should, therefore, be drawing nearer and nearer to the Lord, and be earnestly seeking that preparation necessary to enable us to stand in the battle in the day of the Lord. Let all remember that God is holy, and that none but holy beings can ever dwell in His presence. {CET 113.1}

What's your take on the events described in Joel 2:30-31? Is this event before during or after the NSL?

In the Saviour's conversation with His disciples upon Olivet, after describing the long period of trial for the church--the 1260 years of papal persecution, concerning which He had promised that the tribulation should be shortened--He thus mentioned certain events to precede His coming, and fixed the time when the first of these should be witnessed: "In those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light." The 1260 days, or years, terminated in 1798. A quarter of a century earlier, persecution had almost wholly ceased. Following this persecution, according to the words of Christ, the sun was to be darkened. On the 19th of May, 1780, this prophecy was fulfilled. {Mar 150.1}

"Almost if not altogether alone, as the most mysterious and as yet unexplained phenomenon of its kind, . . . stands the dark day of May 19, 1780--a most unaccountable darkening of the whole visible heavens and atmosphere in New England."-- R. M. Devens, Our First Century, p. 89. . . . {Mar 150.2}

The intense darkness of the day was succeeded, an hour or two before evening, by a partially clear sky, and the sun appeared, though it was still obscured by the black, heavy mist. "After sundown, the clouds came again overhead, and it grew dark very fast." "Nor was the darkness of the night less uncommon and terrifying than that of the day; notwithstanding there was almost a full moon, no object was discernible but by the help of some artificial light. . . ."--Isaiah Thomas, Massachusetts Spy: or, American Oracle of Liberty, vol. 10, No. 472 (May 25, 1780). . . . {Mar 150.3}

The description of this event, as given by eyewitnesses, is but an echo of the words of the Lord, recorded by the prophet Joel, twenty-five hundred years previous to their fulfilment: "The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the Lord come." {Mar 150.4}

Christ had bidden His people watch for the signs of His advent, and rejoice as they should behold the tokens of their coming King. {Mar 150.5}

Gordon are you referring to the pressure to participate in activities, "religious" or otherwise?

If I understand your take on her quoted statements correctly, I would presume that you believe the comment about darkness in Joel is in referance to the dark day in 1780. There is one possible point of conflict with this: verses 30 and 31 occur after the latter rain of which is discribed in verses 28 and 29. To the best of my knowledge, we are still waiting for the latter rain.

Joel
2:28 And it shall come to pass afterward, [that] I will pour out my spirit upon all flesh; and your sons and your daughters shall prophesy, your old men shall dream dreams, your young men shall see visions:
2:29 And also upon the servants and upon the handmaids in those days will I pour out my spirit.
2:30 And I will show wonders in the heavens and in the earth, blood, and fire, and pillars of smoke.
2:31 The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the LORD come.
2:32 And it shall come to pass, [that] whosoever shall call on the name of the LORD shall be delivered: for in mount Zion and in Jerusalem shall be deliverance, as the LORD hath said, and in the remnant whom the LORD shall call.

Acts
2:16 But this is that which was spoken by the prophet Joel;
2:17 And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams:
2:18 And on my servants and on my handmaidens I will pour out in those days of my Spirit; and they shall prophesy:
2:19 And I will show wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke:
2:20 The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the Lord come:
2:21 And it shall come to pass, [that] whosoever shall call on the name of the Lord shall be saved.