Kurt, initial deployments in 1990 were by units from continental US, not Europe.
Ft Hood, TX is not known for its mild climate.
Sure the coalition forces crossed that terrain.
Terrain crossing for 100 hours isn't however a particularly demanding requirement for an AFV.
This is what I'm saying. The Desert Storm performance is not indicative of the threat environment that the NATO forces faced in Europe, and is not to be used as a design retrospective.