Yes.
I mentioned the other the day that Poole's improvement is based on him maxing out the strengths he had coming into the league. All his weaknesses are still his weaknesses: he's not a good defender and his decision making still isn't there. He's still the same player he is now, regardless of who the Warriors drafted back in '20. And the thing you must remember here too is, Wiseman has no value and has been a dead spot on this roster, so he's essentially been the worst of both worlds.
Drafting Melo would've forced the Warriors to invest in a big man (instead of relying on Wiseman), and if he came to be that they had to decide between him or Poole, either one of them would have enough value to trade for a legit big. Wiseman is neither a legit big nor does he have the value to trade for a legit big.
Drafting Melo doesn't affect Poole's development. He still puts the work in to improve his game (because he has that dog in him), if not even more with Melo as competition to his spot. And besides, let's not act like Poole is some can't-miss-prospect who was essential to the Warriors winning a title this season. He was wildly inconsistent (which is to be expected) and was borderline unplayable at points during the playoffs.
Who knows if Poole even has a future on this team moving forward. Both Moody and Kuminga could put the front office in a position of letting him go.
It's telling when the greatest compliment you can conjure up for drafting Wiseman is how Poole improved his game. It's nothing about Wiseman himself, but another player who's a guard and his development.
And regardless of all that @Ohene and @BigMoneyGrip, why center this around drafting Melo instead? There's an infinite amount of other routes they could've taken instead of drafting Wiseman. You don't think actually trading that pick for some vet help would've been better too? Vet help in the context of a big man, where Poole still develops as it now stands and the Warriors have proper frontcourt depth?