D&D in all of its forms since 1974 had always walked a razor's edge on the gameist/simulationist divide. Sure, when it got right down to it, gameist designs won out in every edition. But in prior editions, there was at least a PRETENSION of simulaitonism in the game rules and its settings.
Yeah, I mean really. Last Wednesday that Turbonium Dragon was bearing down on me and I pulled my Orb of Awesome out and Blasted it with Disintigrate but when the DM described that happening to my character Thursday Night it just didn't feel the same.
But at least my shorts were cleaner.