Well, I'm pleased to say that starting about 9:25 PM, things lit up here as usual with private displays all over the place. The town was choked with smoke and I got some good drone footage of all the hoopla.
Why the silence before that time, I have no solid explanation. I suspect that "monkey see, monkey do" is the explanation. Someone starts up 3 days early and everyone else has to get in on the action. But nobody started early this year so nobody followed.
Weird.