It's highly unlikely those blisters are the result of some type of friction. Usually they appear as a reaction to adhesives like the surgeons suggested.
Sometimes a home health therapist will remove bandages although this is usually done by your nurse. In most cases there are no problems. But, When she saw the blisters, she should have called your home health nurse in for a visit immediately so you could have been evaluated right then.
@Rick951 ... I suggest you not try to make yourself a "test case." Tell your medical team that you had a reaction to the dressing on your previous surgery so they can use an alternative.