"I think you are drastically understating the 'effort' part of the equation."
"Avid/Adobe on Linux - unfortunately I can't see that happening. Too much that would need to be tweaked to bring functionality on par with the other OSes, Apple would have to port Quicktime to Linux (and Quicktime is dead) etc. etc."
"Not saying a Linux port wouldn't be great, it might be, but it's a really big effort and wouldn't make a whole lot of business sense at this point for avid/adobe."