I posted my opinion on this one in the PTR forum, because as of right now I feel pretty strongly about it. As someone who enjoys red devestation in m+ a lot, I think it’s a nerf, perhaps by about 8%.
I can’t play right now - still visiting family until after New Year’s. But when I get back I’ll test it, but I’m definitely nervous about it. Especially since almost no one plays Flameshaper dev right now, it might not get much attention if it’s accidentally a nerf even if it’s well intentioned.