It’s not a matter of forcing people to Google. I think the havana is that a fancy wedding hall is a known landmark that shouldn’t need an address (for those in town). For example, you might invite your neighbors to a “kiddush at the Young Israel of Coffeeland” without giving an address because everyone in Coffeeland knows where the Young Israel is.
Perhaps this is even some sort of a throw back to ancient times when towns were smaller and there were no addresses.
Since this is the CR, I’ll have to say that this is probably chukas akum because the goyim would always get married in the church in the center of town that didn’t need an address because everyone knew where it was.