It doesn’t change the fact that they were a bad team. The contention was high profile free agents don’t join bad teams. Well Nash did. That’s indisputable.
Sure, okay, so modify it to "high-profile free agent don't join bad teams with very low potential," which is what the Suns will be.
Also, Nash wasn't exactly a high-profile free agent in the summer of 04. He'd made two All-Star teams, but he'd averaged better than 8 apg only once and was the third wheel to Nowitzki and Finley. He ended up turning the Suns franchise around, but not too many people saw that coming, and it was possible only because of the untapped strength of his teammates.