I was out at BV around noon and much of it has been mowed. Can't say if the whole thing was mowed because I didn't see the entire park. But hole 1 is mowed and so is all the grass near the practice basket up top by the pavillion.
The tall grass is quite a burden. It makes the rounds last twice as long because unless you are standing on top of your disc, you won't see it. So even when you land in the middle of the fairway and have a good point of reference, it may take you some time to locate it.
I've only been to Smithville once. The practice basket I'm referring to is the one that is on the island of the parking lot that divides the Beaver and Blackthorn. I was throwing shots on the Beaver side.