I am having an issue in a similar area on my GT where the passenger’s body parts don’t even cover. I sent it to Service a Couple of months ago and was told it was not a problem.
I had my driver side door replaced for a similar issue after a lot of fighting which you might have to do but hopefully this is a no brainer. The service level may be going down now that they seem to be running out of money and are unable to sell as many cars as they produce.
I have stopped watching them or keeping up with them at this point. I will be watching my seat issue and have that difficult conversation if I see the seat leather deteriorating.
I know I am in the minority here but the quality of the leather used is less than stellar no matter if it was caused by the fact that they had to make do with the best they could get during COVID.