Mr. 80:
Point being that it is not the Guf of the Stadium that creates the Issur, it is the Ma’ase that is going on in the stadium that creates it. I don’t think anyone would claim going to an empty stadium to use the bathroom has the same din as walking into a church.
or better yet going to MSG (not monosodium glutumate) for the Daf Yomi Siyum