Sc doesn’t matter. Nerf to fire is the least imo..
The book requirement sucks for HC, but a good Diablo book will noticeably increase your Apoc damage, which is untouched.
The flame wave nerf is minimal. It’s application will remain unchanged minus the 15% overall nerf to the skill.
Losing free conviction hurts to the tune of a loss 16-17 minus enemy fire res, but they still are good tanks, although not immortal.
The demon hard points requirement nerf still works pretty well with the 3-skill synergy fire tree. Can get a tank and a consume. The other two build options will be limited to a single consume, imo.
You’ll struggle with fire though, without proper gear and a sunder.