Said no one ever. FCP X was a rewrite to make use of new hardware and software technologies and therefore necessary. Nobody suggested that it was completely feature equivalent with its previous versions. The people in this thread claiming to be the only ones who understand professional needs, are those who know nothing about either software or hardware development.
Actually, I do...
I'm around editing studio's for over 20 years now and I've seen some cursing editors out there once the new Final Cut X came out and it's clear to me you don't have a clue why these people quite rightfully got upset, I do, so I'll explain it to you by removing some wrong conclusions you've stating here:
1- first of all, software development had nothing to do with giving aid to professionals. Meaning, Apple, at the time, could have done both: release the new Final Cut Pro X 'while' maintaining support for the old version until the new released version would be bug-free.
2- Second, see point 1, the new version of Final Cut X was at it's release anything but bug free, it crashed frequently, it was not able to load previous versions of Final Cut...so...wait.... let's stop there! Indeed, the new version didn't allow to load previous saved projects of Final Cut. This resulted in editors where sitting ducks because they couldn't do '
anything with their work.
So there you have it. Then you could, with all your knowledge about professionals, reply with: what's the problem? Go back then to your old Final Cut version by installing it. This wasn't possible either! That was something Apple took care of forcing people to use the new version after installing it. So professional editors coudn't even step back. It took weeks and tons of rightful complains from professionals and a 1 star ranking for the new Final Cut X at the Apple Store until Apple gave in; admitting this was a wrong choice and they restored the ability to re-install the old Final Cut Pro. By then many users already left Final Cut X and exchanged it into Adobe's Premiere because they, again quite rightfully, never ever wanted to face the position again in which they couldn't do anything with their work literally....
Now we are many months further on the road and Final Cut X has slowly, with many many updates grown from being a kindergarten editing software package to a professional editing suit once again...
Now the clue...
No one, no professional out their, was blaming developers for doing a bad job, even though they did with the release of the first version which was way off from being labeled: "ok" as a product due the tons of bugs. But, this wasn't the main reason why professional users got upset, they got upset because Apple made sure they couldn't your their entire database filled with older projects any longer and they made sure the old Final Cut version couldn't be installed.
So, when you know this all, and you do now, you'll understand that it has no ground stating that people, the so called professionals, where merely whining about Apple without any good argument. They, the professionals at that given time, had all (!!!) the reasons to complain.
Believe it or not there are other reasons than just looking pretty, why the new Mac Pro has become a cylinder. And this rack looks ugly, primary because it wastes so much space. A more elegant space-saving honeycomb solution has already been shown.
Space is totally not relevant when you work in a studio. Power and the ease of adding third party high end hardware is. Every professional will subscribe to this statement.