They may not have put any updates out in a while but they left solid software when they stopped working on it.
The instructions state that the neutral points are only for setup reference and not used for flight. To be totally clear I went through and saw that my trim values were noticeably off of the neutral. I carefully noted the trimmed position, exited, then went through all the menus without touching anything. When it was all done the swash popped back to the trimmed position. I don't know how myths like this get started but it has no basis in fact. I almost bought into it as well but this is the way it works.