The issue here was not at the ramp but all the idiots that decided since the beach was closed to driving they'd all go hang out on the islands in the river.

So in order to help with social distancing and to try to not have 300 boats partying it up on the island they chose to close the ramps.
I mean you can go 5 miles down the road & put in the next town & drive your boat back to the islands so it's not really stopping much in the end.