Not only did they answer the question, they have policies which makes sense. If a passenger knows they have a medical device which could rupture during a pat down (and their pat downs are, I think, far more aggressive than the TSA's) and would prefer a body search in order to protect the integrity of their device, there is absolutely no reason not to allow them to consent to the next highest level of search. In fact, because such a passenger is likely to fail the pat down anyway, it probably saves customs time and money to allow that.

Further, the anxiety of waiting for a body scam result you know you would fail would be terrible. Same for a pat down. And all that ends up wasting time if you have a connection to make.

Further, this helps autistic people who may want to travel internationally bit do not like to be touched.

The removal/emptying of a bag is highly invasive but the fact that they require it at a medical facility makes me think they put the patient's safety first. I object a little in principle to this procedure but I am glad they made it as safe as possible for the person being searched.