Just to clarify, what happened was that WotC sent out preview copies to channels with some loose restrictions, pretty standard permissive stuff.I will admit I'm not familiar with the issue but isn't a company entitled to protect their intellectual property if people reveal too much detail? Do you think people should be able to just share entire sections of the books?
Channels made their videos and posted them, then a day or so later WotC changed the rules to be much more restrictive and sent out copyright strikes. A few days later they retracted strikes, but the damage is done. Creators spend a long time making those videos according to the original guidelines, then have to blur 90% of the video if they don't want their channel struck as per the new guidelines.