I don't know why everyone is acting surprised, it's been this way for a while now. Pre-ordering any game is just paying early so you can be a dev-tester. I can't think of a major release in video games that hasn't been a buggy mess on release. I was fool with No Man's Sky, and I won't be fooled again. My plan is to just wait a few months until the second patch, same thing I do for all new releases and they're usually discounted a bit by then too.