Could it be that they just couldn't get the circuits.
There's probably a pecking order. Touring Cars,BSB,other car stuff,the bigger Bike clubs and so on.
Reading between the lines I think there's been some upset at the VMCC which has had a knock on to BHR.
I can't remember which club runs The Lord of Lydden, but that's still happening and have a class we can enter, dunno if I fancy racing that late into October.