Until you get to BIG power, CCA versus OFC is futile. Also for all you people nuthugging that video, we know nothing of the conditions. It could very well be a rigged video. Sky High, Knu, and other similar quality companies have very high strand count which also helps.
I know I plan on running 2 Soundqubed 2200s (or equal power) and will run 2-3 CCA runs because I can get 100ft of Sky High CCA for $144 which is the price of 50ft OFC. With 3 runs of CCA I'll get roughly 750 amps of throughput whereas 2 runs of OFC (which would be all I could get with a 50ft spool) will only give me 600 amps. Plus the multiple runs of CCA will have less load per wire, so heat wouldn't be much of an issue.
I recently helped a friend run 3 Positive CCA runs and 2 Negative CCA runs as opposed to going the OFC route.
Just my .02 on this whole ordeal.