The fact it could have been real, they chose an hour that only a tiny portion of the world would have been april 1st (and even then I think the moment they posted was still too early ?), and just how modern times are.
I would say 100% not funny.
I mean seriously this is 1 the last bastions of relaxation and getting relaxation of any kind without worry of any modern things ruining it or stressing you.
I think reddit style thing, would have been enough, then it just be like o... guess I best prepare for things getting 1000 down votes and moderators having fun of fighting in the forever eclipsing shade from all the massive amount of reports (which then any moderator not knowing it was a prank would get an even bigger heart attack).