They already knew after the first 5 seals that it was the wrath of God already.
Revelation 6:15 And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains; 16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: 17 For the great day of his wrath is come; and who shall be able to stand?
Not “is coming” or “will come” but “is come” as in “it’s here”.
They (the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man) just are going to think it has come. The terrible wrath (woe) appears to come after the 7th seal is opened (rev. 8), after those in Yeshua have been removed from the scene (rev. 7).