The TMRA website says that the reason is strictly Covid related.
It probably is covid related.
There aren't that many good hamfest venues in the Toledo area, and the Owens facility is pretty nice.
Years ago they used to have it at the Lucas County Rec Center, but the college facility is much nicer.
If the college is afraid of covid, they're probably more likely to not let in a bunch of outsiders.
No permit = no venue = no hamfest. And not the fault of TMRA or its leadership.
Hopefully, someday, this maniacal covid paranoia goes away.