I don’t think Trump’s statement was meant as a definitive policy statement, that a bunch of drunken partiers should be carrying guns. I think bartenders, bouncers, and even the sober public should be allowed to carry. Having hundreds of unarmed people in a place that had only one way to get out, is asking for trouble, particularly in this age of insanity.
This is a different diagram from the one I saw (all exist highlighted in red), but I can count the 8 entrances, exits or both.