re: Apple not using Final Cut Pro (FCP). I feel like Apple made an intentional decision to abandon the high end production market when they released FCP 10 in 2011. They dropped multicam, XML import/export, etc. I heard they eventually brought most of these features back but seems clear Apple isn't focusing on this part of the market.
FCP 7 was garbage, which Apple bought from Macromedia. It was never "high end."
The new FCP could have righted many wrongs, but Apple turned its development over to people who didn't even understand industry-standard terms... and who rejected input from experts Apple had hired years earlier. But that's Apple's standard behavior. They just don't learn.