What I don't understand is why
@izzyj09 's consultant suggests "they" are talking about T2s.
I think the extra care for waxing is probably to do with either hot wax on nerve damaged extremities, with reduced feeling (potential for burning), maybe slower recover from the micro injuries of pulling the hair out (the skin appearing like a red rash), tearing of thin skin by over-zealous yanking of the wax strips, or any infections developed as a result of any skin breakages.
I could let me imagination meander longer, but that's probably enough. I still don't get why any of those would just impact T2s. It is my understanding T1s also suffer some of these potential complication, and may even be more susceptible due to the potentially much longer standing diabetic diagnosis.