I wouldn't, because his learning time means his victims's time in hell. It also doesn't work like this legally, in case of committing a crime, not fully realizing one's own problematic behavior is not quite an argument.
It still applies, although on a smaller scale. Some person will feel uncomfortable because of another person's learning process. It's obvious that learning will take place, but it should happen as an established and guided process like training or curation, this kind of learning is ok.
