Yeah there are people that care about teh changes to Blade, but nobody gives a **** about them. It's not the the outrage that would happen if they did that Batman script where Selina was a hooker, Alfred was a mechanic, and Bruce Wayne was a crazy guy punching people with a giant ring.Heh, you'd be surprised.
There's actually people that are pissed they gave Blade Powers. Shocking I know.
The only thing that's confusing about Hawkman came about as a result of COIE.
They came in and revamped the character with Hawkworld. Now, granted, Hawkworld was an awesome story, but what it should have been was an elseworlds and left it at that. They brought Katar Hol and his Hawkwoman in, and they were kinda popular for awhile, but then, as is often the case, they wanted to bring the original back. This is where it all falls apart. They killed Katar off, then combined his soul with Carter Hall and a whole lot of other stupid, confusing mumbo jumbo, and now you got the mess that is Hawkman.
It's simple really. Lose Hawkworld and just stick with Carter Hall. That's all that was ever needed.
Another reason I would want them to keep the reincarnation angle is in case they ever a a captain Marvel movie and have pieces in ancient Egypt he could be in it (similar to the JSA run where Jay went back in time to ancient Egypt, hung out with Black Adam, and fought Vandal Savage.