For your second question, Matt claims that it's partly because WP engine disabled core features of WordPress. I can imagine a world where you are inundated with complaints that your software doesn't do X basic thing (because the top provider has disabled it) but ITS BEEN THERE THIS WHOLE FUCKING TIME TIME STOP COMPLAINING (put a smile on and explain calmly). You get my point. And then you snap.
No idea if that's what is in his mind but I have some sympathy for Matt. In principle. (This is me steelmanning Matt)