Pretty much. I did this too by mistake and it was a pain to fix. On the plus side I now better know where the latch is physically positioned within that slot to allow you to swivel mounting block. It wasn’t too bad to fix.

Yes, it has a clip that is on the underside of the board it is plugged into. Just grip the connector and squeeze it vertically and pull.

It's not obvious to me how the right most ribbon cable comes out. Does it have a catch on the bottom side to hold it in?