Packed
It's important to remember that Roosevelt never actually "packed" the court as he threatened to...the court backed down. I guess you could say he "packed" it later with judges sympathetic to his cause, but this was done in the normal legitimate sense.
I dare say that if the writers of the Constitution knew that the term "general welfare" was going to be stretched beyond all reason (like the the Commerce Clause), they would have been a little more specific. A word to the wise for all future Constitution writers.