Two things that need to be addressed: keyframes and image sequences. There are no hold keyframes in Final Cut and as far as I can remember it never has. I have been with Final Cut since version 3 though I skipped one upgrade cycle. Image sequences can be imported into Final Cut but you have to change the duration to 1 frame. I think Motion can handle image sequences and make them a single clip upon import. Still no mixer and once Fairlight takes off in Resolve I may just use that for the audio workflow.
To be sure Final Cut is not perfect but neither is any editing software. Even though it needs improvement, as the things mentioned earlier, I really don’t see myself jumping ship. To be honest, those things are not that major. At least I don’t have to pay rent. ????