Would you rather they take the approach that BA uses and not assign a gate at all, until maybe an hour before the flight?

A few weeks ago I flew GRK-DFW-SLC. While I was waiting for my GRK-DFW flight I received at least 3 messages about the gate for DFW-SLC.,and I think there were more after I had turned off cell service For someone going through DFW, I don't think it really matters until the incoming flight lands. At that point I'll check the app and see how far I need to go (I prefer to walk at DFW).
I guess since you are driving to DFW, it matters for parking. Do you have to check in at the terminal where your flight departs from, or can you check in at any AA counter?