He should work on those scenes, and its likely that the following update fills in some of those scenes, I mean, I dont even remember how many are still in the game to begin with.
He is incompetent, just the constant issue of being unable to reasonably hit his own time frames, and maintain a stable update schedule is enough to prove this. I'm just saying that I personally don't find him leaving some not implemented scenes in the game as a sign of incompetence, at most its just a sign of his priorities, which some people may or may not agree with, personally I don't care about the not implemented scenes all that much, their locations don't exactly seem like they'd lead to incredible scenes anyways. That being said, some of the best scenes currently in the game were added despite the not implemented scenes being present.
Though I did originally add the caveat that updates should come out within a reasonable ratio of quality, quantity and time. For the previous update defending it would be difficult, but if he is even somewhat close to releasing another update to the time he implied (seems to be within October), than it would completely change things. I mean I think if he was consistently updating the game then there'd be little to no complaints, from 0.30 to 0.31, even if it takes another month, the improvement in speed over the previous two updates would be substantial, especially as those two took so long, each being over a year.