Most people will see it off the Apple website, thus making it relevant. And because more people will see it off their website, one could make the argument that demoing it on a Mac Pro is irrelevant.
Also,
this story has a professional saying that it won't be for good for professional use at first because it will have so many issues since it is a total rewrite. Not to mention I have seen multiple other articles saying that the new version seems to be for more serious amateurs and not professionals. There was even one story on gizmodo that explained in detail why it will not be for professionals.
Just because the "audience" at the demo was "cream of the crop" doesn't mean they are the only ones who will use it hahahaha. And notice that I said "MAIN audience." I still think that there will be more people using it who do not work in Hollywood than people who do work in Hollywood. Learn to read, maybe get hooked on Phonics
But of course no matter which way you want to see it, it has not even been released yet, so we can't say anything for sure.