I'm not so sure about that. The engine is such a central part of a game company's stack. On one hand that makes it harder to just up and switch, so there is so

I'm not so sure about that. The engine is such a central part of a game company's stack. On one hand that makes it harder to just up and switch, so there is some lock-in there, but on the other hand, if developers don't regard Unity as a reliable partner, they are going to be taking a hard look around at alternatives. I think the real problem with this pricing move is that it made a lot of Unity users think "hey, we can't trust Unity not to screw us over." That is something that is hard to take back.