I don't know why it can't be "hold L1 or R2 and press RB to target enemies, press LB to target friendlies".

I also wish they would let us keep the keyboard UI on screen, as an option, even if we're using a gamepad. I get that the UI for gamepad looks unique so you can see what is happening, but the keyboard UI has 10 x 2 hotkeys and the gamepad UI has...8. really? 20 vs 8? I know you can cycle through multiple keybinds but it's tedious.

and don't get me started on the maps...