I don't see any of those "disqualifications". Rush clearly could have treaded the 2112 ground. To this day is *the* album of theirs. Opeth, if anybody had said "what do you think of Opeth switching from death metal to 70s prog?", the answer would have been "if they want to kill the band, sure".
Same with Wilson. Porcupine Tree was filling the halls easily with their alternative metal. Going pop like he did was one hell of a ballsy move.
DT still plays the same style, essentially. Sure they evolved a bit, but in a lot of ways they still play a variation of IAW. And 25 years later, it's just not convincing anymore. People show up for a convincing rendition of 80s DT. And James first of all, can't do that in 2017.