[ChevyGuy]

when the tires are rotated by the dealer with a oil change and scheduled maint. the car computer needs to be re-learned as to what sensors are where?

Correct.

Been chasing a low tire light for the left front when actually the left rear was the culprit. Guess the dealership has a real tool working for them. Guess that will be question to ask the service writer at the next rotation.

More likely, someone is under pressure to get things Done. It's not something the customer will notice until a tire starts to go down. The chance of it blowing back to the employee - nil. But it does say something about the dealership, priorities and supervision.