The time of reward is not until after it gets announced in the 7th trumpet
section. as in Rev. 11:18 That is after the trib is over, not in the middle of it. None of the vials are during the great tribulation.
The wicked hide in the rocks as foretold in
Isaiah 2:10-12 and
Isaiah 2:19-21. This event is in the 6th seal and Isaiah wrote as to He is exalted alone.
14 The second woe is past; and, behold
, the third woe cometh quickly.
15 And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.
First thing that has to be established is when the seventh angel sounds. The seventh angel announces the third woe. The only woe in Revelation following Chapter 11, is in Chapter 12, Satan cast down for the the time, times, half times. So the 7th angel sounds before then.
And please use the biblical terms. When you say "trib", that is ambiguous. Does "trib" mean the 7 years - or does it mean the great tribulation timeframe which begins when the abomination is setup to be worshiped for 1335 days, Daniel 12:11-12. Which that image is not removed until the day that Jesus returns.. The biblical term is "great tribulation"
All of the vials of wrath are
within the second half of the great tribulation, during the time, times, half times that Satan is cast down restricted to earth. Provable by working back from the 7th vial, to the sixth, to the fifth, to the third, to the second , to the first.
Revelation 16:2 And the first went, and poured out his vial upon the earth; and
there fell a noisome and grievous sore upon the men which had the mark of the beast, and upon them which worshipped his image.
So the first vial of wrath is during the 42 months (Revelation 13:5) when the mark of the beast is required and people are worshiping the image of the beast.