The first point is interesting but ultimately a damp squib IMO.
The second is vastly more important. Yes, WP is a Matt project first and foremost. You can't not price this in with your equations in terms of whether you choose to use WP or not. The problem is, Matt's - if I can be blunt about this - a bit of a dick. He has an ego that demands stroking, he has a level of pettiness that is rarely seen and he has demonstrated a level of petulance and spite in recent times that do not endear him to his would-be customers.
It's also become more clear that what he wants out of WP is not in line with what the community want, and the community are just unpaid labour for him. It's fine if the community are getting what they want out of it but it's become increasingly clear that's not necessarily the case.