I’m pretty sure it was a group of trolls taking advantage of a problem in the YouTube matrix that locked accounts if there were enough reports and the rules were so ambiguous even YouTube couldn’t work out if the rules were being broken or not. When they work together they can be quite powerful.
I wouldn’t expect a group like CG to have anything to do with it, I can’t 100% say it’s not possible, I just find it so unlikely I personally wouldn’t think it was them.
These trolls can be RELENTLESS, once they get a bee in their bonnet about something they soon produce page after page of copy-pasta bullshit. I would expect they would happily sit there with a VPN and hundreds of YouTube accounts reporting videos.