Are you sure the light was triggered because of heat? I would think that a dragging brake would actually cause that tire to rotate slower than the others. Depending on the braking force applied, this might sound like some occasional, subtle scrubbing, instead of squealing like a tire that’s sliding.

My explanation is that the hanging brake produced heat, wich transported trough the rimm to air in tire. Gave lesser deflection of tire. Gave larger rolling circumference, so difference between R and L on rear axle. Gave difference in rotation speed wich was noticed by the ABS sensors, and explained as one tire with low pressure, but in fact the other way around.

So if lowpressure warning with indirect system, and no flat tire, feel the rimms. If you burn your fingers at one rimm, its a stuck brakeclaw.