I know this is an old thread, but, Mr. Canuck is a film maker and not a grower. You must also remember he is being paid to use Gaia Green, if Plant Magic started throwing more money than Gaia Green at him that would suddenly be his go to sauce. He also uses things like EWC in his mix, which isn't the same as just using straight coco. Also being a filmmaker you have no idea if what he did actually worked like he says it did. If in his videos he suddenly ran into various different issues, would he document them? If he did document his issues would everyone still be so keen to use Gaia Green? Would Gaia Green still want to pay him?
The guy makes a good looking video, but he employs methods that would be laughed at on these forums. The bottom line is that Youtube is there for entertainment purposes only.