I'm glad Subverse didn't go this direction.
Fallen Doll, and games like it, have the big problem of forcing the consumers to do the work of the developers for them. Imagine going to a movie theater and they say they have all of these premade scenes of a movie done, but you have to do all the camera work yourself to make the movie look good. The movie should be good already, that's what you paid for. You didn't go there to do the work for them. Or imagine playing something like Legend of Queen Opala, but the game made you color in Sparrow's linework yourself.
And while total control over the camera angles is theoretically a good thing to have, in practice you realize why most things don't operate this way, including real porn. Specifically, its because most angle looks like crap, and don't show things well. So games like this not only force consumers to do the developers work for them in making the porn look good, it really doesn't offer anything more in terms of good porn then if they just had pre-rendered the 1-3 angles said position looks good in as video files.
An added problem is that these sorts of "games" spend so long as these camera control systems, and getting everything to work on it, that they never actually make the game part of the game. Fallen Doll and Wild Life both suffer from this horribly. There's nothing to really play after years of development, and when you can spend all the time trying to findangle the camra to make the scenes look good, or just go up on a rule34 site and watch already premade videos, there is no reason to not do the latter. The latter is not only less work, but will almost always look better.
I would honestly say any other type of lewd game, from VNs to trainers, are better then games like Fallen Doll. Becuase they arre actually functional games, and don't spend all their time trying to get out of doing the one thing they are supposed to be doing, making good porn, by forcing it on the players.