The shul I daven at hosts a superbowl party.
Let’s be dan l’kaf z’chus and assume their intention is to prevent
people from watching the commercials and halftime show, or maybe
from attending parties with mixed company. After all, a shul is an
institution for matters of kodesh, and the Super Bowl is no such thing.
Perhaps the shul has a simcha room (Like most shuls do) and that is where the Super Bowl Party occured. I really doubt it occured in the main sanctuary