Same with my locals. They apparently are still working out the contract issues with ABC and will be added when all is said and done. Here was D* response to me when I asked the same question.
"Before we're able to add a local channel as a part
of our service, by law we must reach an agreement with the local station
that gives us permission to broadcast its signal. To date, we haven't
been able to reach an agreement with your local ABC affiliate.
We recognize that the customer is caught in the middle of this process
and we hope to resolve it as quickly as possible, and begin providing
you with a full lineup of your local network TV channels. In the
meantime, we thank you for your patience and understanding."