As has been said earlier, what would you think of an FTO that was prepared to break the law by avoiding the Visa and TSA rules. It probably means that they would be prepared to break every other regulation too.
It may be an inconvenience to you but on the assumption you aim to be a professional pilot someday where rules etc are important, what does it say about you asking the question?
Once we start picking and chosing which rules to follow we have anarchy.