He's shown more off the dribble in these last two games. His improvement from 2pt range during the season was largely due to the fact that he stopped taking mid-range jumpers. He now just shoots 3s and goes to the rim. I think realistically, Miller is in the same tier as Amen Thompson and Cam Whitmore, in the 3 - 5 range, and it will depend on team need to some extent. If it were me personally, I'd want an All Star and potential #1 option, and I don't think that's what Miller is. However, I could see a team view him as a solid and safe pick who fits their team. Keegan Murray went #4 last year to Sacramento largely because the Kings were heavily invested in Fox and didn't want to spend a #4 pick on Jaden Ivey.
The argument for Miller going #2 in draft talk really stemmed from the fact that Detroit was sitting at #2 in most mocks, and they've already invested top-5 picks in Cade Cunningham and Jaden Ivey. So then the question is whether the Pistons would draft another guy like Scoot or Amen who really needs the ball in his hands. Miller makes a lot of sense for the Pistons, like Murray made sense for the Kings.
I think the general consensus is probably that Victor, Scoot and Amen are still the top 3 NBA prospects. However a team that already has a strong lead guard might not want to spend a top-3 pick on another guard. At the same time, I think there are going to be teams that would take Cam Whitmore ahead of Miller, since Whitmore is a prototypical power wing with clear mismatch and All Star potential.