Remember, there are no stupid questions, but there are a lot stupid people.
The exit to non-adult is often a gimme. Very few people will ever click an exit link, so I think many reviewers just kind of ignore it and don't count it as a sponsor link, assuming it doesn't exit to a paysite. If it exited to a penis pill or another adult product, I'd count it, but to something like ringtones or tshirts, I don't really care.