It's not an oversight, it's a "feature" of CrD. The way I understand it, regardless of when they open registration for the club, the membership benefits run October 1st to September 30th (or something similar). In order to use your membership benefit's for both registration for and during a given race weekend you've got to pay for two years of club membership.
Also, as I understand it, DL races aren't covered by the current club benefits, so I'd expect them to either create a DL-specific club, add a new membership level to cover DL when club registration reopens, or add an a la carte option to add DL benefits to your club membership. I'd also expect a corresponding increase to the oh-so reasonable membership costs.