I could imagine this happening at LubePros (they left the oil cap off once, and would not accept responsibility) and Jiffy Lube (their kid condescendingly told me my car needed “European oil”. He was confused a bit by the Mercedes-Benz hood ornament installed by a previous owner, but the car was a Buick Roadmaster station wagon. I went to a different oil change place.)
Car dealerships charge a premium and are presumed to be familiar with their own cars. Standard transmissions in Jeeps are not rare.
It sounds like the dealership’s insurance will pay the bills, otherwise the car’s owner would have to sue the dealership, and that costs more for everyone.
Part of this problem is a shortage of trained techs.
All the dealers around my area are scrambling for useful help.
One of the Nascar cars sponsored by a dealer group has “hiring technicians” as part of the advertising on the car.
My guess is somebody decided to hire a “body”