Not quite. The message is vague in the sense it's indecisive. Voters like to hear a candidate is strong and decisive, even if he's blatantly wrong.
Furthermore, the debt ceiling isn't even a significant issue with the GOP voters, believe it or not. In the bigger picture, jobs are. The economy is. Debt ceiling? They could care less.
Anyway, that's assuming they hang on through the ad long enough to make it to the final 10 seconds.