Well let's see...
-His trait never really bothered me much.
-Boot stomp getting a nerf is good. Especially for online. Playing online makes moves like 5-6 frames safer. Now it might actually be punishable online.
-MB Lightning Strike getting an advantage nerf is good. It already does good chip damage and pushes them back. I always hated how it could hit airborne opponents. That was so retarded.
-Not sure what it means by Black Magic conflics with B3/F3. Does that mean that off of Black Magic it was hard to land a B3/F3? If they made it better, I'm okay with that.
-Dash nerfs are great. BA players can divekick, then you block it, then they backdash to safety. Get in and get out for free. That's lame. Now he can be punished, hopefully.
-Increased damage scaling... I don't fully agree. His damage output isn't crazy.
-Practice Mode change seems pointless.
-Stacking two sets of trait is OP and a well-deserved nerf.
-Improved hit advantage on B23U2 is a minor but accepted change.
If I had to choose between these changes to Black Adam or getting the Ares buffs, I'd definitely go with this. By far.