I remember when I looked at Baylor in the late 80s, that Grey Poupon mustard wasn’t allowed on campus because it was made with white wine.
That was a lot more restrictive than looked good to me coming out of high school.
Re: “. . . when Grey Poupon wasn’t allowed on campus . . .”
I call BS on that one. However, even if true, you’re talking about Bible Belt culture, not Chrisitianity - unless you found a passage in the NT where Jesus says stay away from Grey Poupon.
I’ve never heard that Baylor went that far into the Baptist culture unless you mean the 1950s or 60s - not the 80s.
Your example sounds more like some policy from Bob Jones University than Baylor.