Pedantry alert, but I *think* it applies here.

CUTE refers to the equipment (Common Use Terminal Equipment,) not necessarily gate control. You can have CUTE equipment on preferentially-leased gates. There are several airports and/or terminals where the equipment is CUTE, even if the airline has preferential rights to the gate. DFW terminal D is the geographically-closest example.

I recall a mention that some/all of the OALs in Terminal E had their leases reworked. I'm not clear if it was for all gates, or only a subset, but it allows for other airline usage if not otherwise used. Mostly preferential, but with a qualifier, as I understood. AA used E3 for a while when AC trimmed their schedule, and as mentioned are down gates in A & C, so it's not surprising they venture over to E sometimes. (I'm ignoring the Eagle gates. Those are sized for RJs, and fairly well utilized on their own, plus any ML use would probably introduce labor issues.)