Official comment
I understand the frustration -- I'm a Pioneer DJ specialist and until rekordbox 5, I was still using Serato DJ as my primary performance software because of small nuisances. I don't do video, so I'm not as specific about those requirements (and I understand that plays a big part of your decision to switch back).
Even though there are still a whole host of things that I'd like to see updated, changed, fixed, or added, I know the rekordbox team is working very hard to address all the concerns and feedback the users are providing, including the very gripes on your list. The nice thing is you have the license, so you can always pop back from time to time to see if it's finally in a place where you would consider staying with it. After all, there's some fantastic features already in place (and coming down the pipeline).
Thanks for the candour.