Apple have clearly decided to go in a different direction, they have a plan,they wouldn’t be Apple if they didn’t.
I’m glad they have, I may be unusual but on the whole I like the new interface, I am working on a number of projects at the moment including a couple on PPro and I much prefer working in FCPX, despite it not being a “proper edit system”
However if I didn’t like it then PPro would be a completely natural upgrade from FCP7, it’s a great piece of software.
“My Name is Steve and I’m an FCPX user”