Luke,
Here’s why the BBA is better than the debt limit: the debt limit is statutory, a BBA would be *constitutional*.
Plain and simple.
The debt limit is here and now. The BBA is an amorphous promise that can't happen for years. The Congress that won't be held to the debt limit, won't pass a BBA that doesn't have loopholes.
It's plain and simple, a bird in the hand now is worth a lot more than a promise that might take 7 to 10 years. A lot of debt can be rung up in the next 7 to 10 years.