FWIW, I flew out of DFW (C) last Thursday afternoon 3/22, and the AA lines were as long as I've seen in years. About a dozen folks in line at each of the 3 Skycap desks downstairs, and the line at the ticket counter & bag drops was filling the maze and then a few dozen more in line behind that.
The lines for TSA were normal, though, only a few ahead of me in the priority lane, and maybe a dozen waiting in the normal lane.