I'm still waiting for the feathers to come back on my birds that this similar thing happened to. I was told to wait after their molt.
It's definitely not "angry " red inflamed skin anymore. Phew!!!! So glad that rooster is gone.
and very happy you have rescued yours from the similar fate!
It's definitely bruising. I have had it in my own flock. Rough Rooster. He was lovely but he had to go.
BTW It took 3 weeks for the bruising to go away completely.