I don't really give two shits about the missing modes, but the fact that the FPS is reportedly not solid is a real bummer.
It sounds like they have their priorities straight anyways, the last thing I would've wanted was for them to force all the modes in, and end up with a buggy game or underwhelming visuals.
Maybe it's the programmer in me, but I appreciate cutting features for the sake of the whole. In this situation, throwing more bodies at the problem would probably have not helped all that much. They could have started earlier though, claiming they had only 12mths is kinda BS.