You're very simplistic.
The offenses took shots. That's literally where it ends.
One sacrificed execution for immediacy. The other sacrificed immediacy for scheme. One sacrificed scheme for pace. The other orchestrated pace into spacing into greater efficiency. One abhorred FTs. The other embraced FTs. One called for a 4-corners spread/delayed screen dribble drive centered around ball-dominant Nash. The other utilized high post, motion-based schemes that saw players without the ball moving to make life easier on Nash. One played Amare as a C. The other as a PF. One played 7 players. The other played 10. One played Amare as the tallest player on the floor. The other played him alongside Frye, Lopez, or Collins the majority of the time.
But, yes, they both had Nash, Amare and a basketball, and pushed pace so they were the same.
Popovich has stated he brought in how to manage his aging stars after watching Gentry handle Nash and Hill, and brought the pace/space, high-post motion offense with side to side ball movement with cutters from Gentry's 2010 Suns.
Do you even remember what a Nash/D'Antoni offense looked like?
Yes, lots of threes, but Nash almost never let go of the ball until setting someone up in a scoring position. He'd dribble, over dribble, circle, and restart.
Gentry often allowed Hill to handle PG duties with Nash on the perimeter.
They are worlds apart.
And, lastly, do you really believe Pops would favor an opportunistic, chaos-based offense that he destroyed routinely over the high-post, motion/spacing-based offense that swept his ass by a team with a coach who was his former assistant?
Dude. Just ing stop.