People, Diablo 1 didn't ruin anything, I'm a skeptic of this idea that a single game can change anything, sure, Diablo was successful but the market for Diablo and Diablo clones isn't the same market as "serious" RPGs, alot of the people who play Diablo clones wouldn't play serious cRPG even if their life depended on it. Diablo created a new market, millions of people played it, where those millions of people were when Fallout and Torment were released? When someone says, "TB combat is boring, why those boring cRPG can't be more like Diablo?" it is because they couldn't care less for cRPG and aren't even willing to give cRPGs a chance, they aren't on the cRPG market, they are on th Diablo clone market, but some like games "journos" love to look pretentious and try hard to make their shitty tastes look like some intellectual analysis.
Another point, the simplistic nature of a game isn't a problem, if the game managed to do what it set out to do, it succeeded, the simplistic nature or complex nature of games has nothing to do with the quality of a game. The problem nowdays is that simplicity is sold as some form of marketing mantra that can make any game widely successful even when that type of game needed some complexity to be fun in the first place, combine this mentality that dominates AAA publishers (and some kickstarter companies by the way) with a mass audience brought by the Xbox 360 and PS 3 where people that don't like to play games entered on the market after "cinematic", multiplayer and simplistic skinner box experiences and you have the recipoe for the AAA market of today. If you somehow forced all this market to play Fallout 1, the result wouldn't be millions of Fallout fans, they really just don't care.