That’s not how this works at all. I honestly don’t know how to explain to you that tv shows and books are different things without sounding like an extremely condescending asshole, so I won’t even try.

The strike rules come from the union, not from the greedy capitalists trying to fuck over the writers. There’s absolutely no reason for union to have a rule forbidding people from writing books. Especially since HBO can’t even adapt the book into the TV show, anyway. GoT is over, they’re not going to reboot season 5 or 6 or 7 or 8 to show us the WoW adaptation.