Not sure if this is uniquely a CLT problem, but this seems to only happen to me at CLT. What is up with American swapping planes off an on time flight to get it on a flight that's already significantly delayed, then give the on time flight a new plane that will now result in the on time flight getting hit with a 2 hour delay. Why only have one flight that's delayed when you can have multiple?

Was on AA1830 CLT-JAX last night, inbound from TPA was supposed to arrive at the gate at 5:30, our departure on time at 6:13. Then right before that plane lands, I get a notification of a departure time change to 7:55 and a new plane with a new gate. Meanwhile, AA coded it as maintenance even though the original plane did AA1752 CLT-FLL at 6:31 which was already delayed. Both of these flights had to turn around and go back to CLT too, and one might could argue that by doing this they could have to overnight less people at CLT on the return flights, but 1752 and 1830 both got back to CLT within 3 minutes of each other, so basically everyone on 1830 back to CLT just missed their connections for no reason.