I can easily understand why you might assume that it would assign default controls for all of your skills like it would in most other games. This is a UX miss which could have been caught with a little bit of testing. I'm sorry that others on these forums are willfully ignoring that and blaming you for it instead. It's always shocking news in these sorts of insular communities to learn that the vast majority of players in any game don't follow dev blogs or read patch notes (nor should they have to).