Thank you for sharing this. Kurschner did effectively take on Wells' thesis.
I was reading through Kurschner's web site to refresh myself on what the pre-wrath position is. What is interesting is that there are areas in which he actually overlaps with Wells. Kurschner seems to define the Great Tribulation as Satan's wrath and to distinguish that from God's wrath, and Wells does the same. If my memory serves me correctly, the Armstrongs, too, portrayed the Great Tribulation as Satan's wrath----and I'm just raising that as a point of personal interest, based on my religious background, not to associate anyone with the Armstrongs.