I don’t think so? In my experience at least, the inner sphincter can be relaxed and dilated with slow and deliberate pressure that isn’t really related to the sort of whole-body relaxation that can result from orgasm.
I think it’s more a matter of learning your body and understanding the signals it’s sending.
But who knows? Maybe that works for some people, and if it does, great.
One thing to think about is that unlike what can be the case with women, most men are physiologically incapable of orgasming more than about once every hour or two. So a man may be reluctant to do that before being penetrated.