Hi Peter
Possibly it's the safety procedure and tools required to isolate the power supply to avoid electrocution especially if they also have to spot weld pins to pull out the dent.
But you can't beat the good old panel beater who probably didn't worry about any of that as he would have dollied it out and not had to involve touching any other part of the vehicle, especially the electrical system.
Glad it all worked out okay and very good price as well.
Personally, I would have denied all knowledge of damaging it in the first place and blamed it on a supermarket car park incident....but I'm sure either way, you would have ended up paying for it, lol
Cheers, Trevor