Easy, we needed BOTH PF and PG. In the JJ era we never could get a decent PF. It was easier for JJ to find PGs arguably. Plus the injury concerns with Haliburton, coupled with the measureables for Jalen Smith and his skill set in college. You go back and look at his games in college, and his highlight tapes, he was arguably the best PF in the draft. His coach was setting screens to get him open for threes, and he was hitting those shots in college. He looked like the perfect fit for the Suns. A shot blocking big with three point range.
I am not saying I agree with the pick. I am just saying I can see HOW it went down. It was just like the Ayton miss in the draft. Very similar.