You underestimate the imagination of the average federal judge. Imagine a law, which was passed as a single bill, says X, how to enforce X and how much money is appropriated for both. A federal judge who likes that law will interpret it to be one issue. On the other hand, a federal judge who dislikes that law will interpret it to be two or three issues.
You’re right and it’s been done to death by the bench. My intent with the single issue bill is to enforce accountability on Congress. We’ll have to find another way to work on the judiciary.