I always battled with the idea of them experiencing God's wrath. This seems reasonable.
I agree with you in that the 144,000 will experience God's wrath.
When I read Revelation 7:5-8, it says to me that this group is coming from among the Jewish people, with 12,000 from each of 12 named tribes. There is too much of a specific nature to suggest anything other than a literal interpretation of this passage. These are newly converted Jewish male virgin men who will be evangelists who will pick up where the Church leaves off after the rapture.
It'll be their job to bring the Gospel to the world during Daniel's 70th Week. With all hell breaking loose I do not see how they can escape the wrath of God.
Now to me, if they had they been believers before the rapture, they'd have disappeared with the Church.
Then, if the church was still here, there'd be no need for them.
But according to Rev. 5, the Church is in Heaven and Daniel's 70th Week has begun as seen in Rev. 6, and the Lord needs someone on Earth to tell His story for Him according to Matt. 24:14.