It really isn't that big of a deal. This is a case where the pros heavily outweigh the cons. That is one of the most idiotic and incoherent ramblings I have ever read. But what you do not understand is it is not a big deal, it's a huge deal and no, art will not flourish. At least not in the moviemaking department.
Moviemaking is a huge, involved process.
The time that goes into lighting, arranging, composing, and shooting a single shot is astronomical. The time and creativity it takes to put a film together with editing and sound and music is amazing. With digital you lose almost all of that. Just throw up a few cameras and shot a few things and throw it together. Oh yeah, you also lose picture quality.