>>13674840In kayfabe, the intention is for him to do a senton onto Nick Jackson, through the glass. In reality, he has to aim for the glass for safety. You're supposed to rely on your suspension of disbelief to bridge the two. If that's unacceptable for you, then it's unacceptable for you, but that's the nature of wrestling. Sometimes to do a spot safely, it doesn't hold up under the strictest scrutiny possible.
