Earlier quoted context omitted.
And what about the people who don't/can't use the institution's network? Why should the institution be allowed to effectively monopolize the unlicensed airwaves?
If I was in some kind of debate club or moot court or something like that and got assigned to side that is supposed to argue for allowing this, I'd probably look into some kind of property rights approach and make a distinction between radio waves transiting the property and radio waves that originate on the property. The property owner could make not operating an access point on the property a condition of granting…
By the same argument, can I also ban cellphones from my property and set up cellphone jammers to enforce this ban? You're free to set up arbitrary "rules" and ban people from your property for it, but that doesn't mean you're deputized by the government to do whatever you want to enforce those rules.