Yes it is the same for me with this update. As we all know the "team power" has nothing to do with deciding a good or bad team or if you can beat that team. Without looking at the enemy's stat's is going to battle Blind!

   I'm on PC

It appears this was an intended change, but it will be returning in a future patch. 

OMG you have to be kidding WHY?? with the arena as Hard as it is to max your great hall (Years to max) 

Now we have to fight BLIND as well? I ask agan WHY?

This will mean I fight less often each day OR spend a lot more of my time going to the index

 leaving Less time for all the rest of the game.

 And if we can see the kit's at the index anyway what is the point of making players go to the index to see the kit's we used to see in the arena battle screen?

 This help's Nothing!  This is a mistake!

  "Returning in a future patch" Well I hope that future is Soon!