I think people overrate height, especially how important it is independent from girth. So it doesn't matter to me how Poke's skill are "for a seven-footer". Like who cares? How many dominate seven-foot perimeter players are there? Giannis and KD are close enough to count. When talking about PG and Simmons, you're getting into the 6-9/6-10 range which has a lot of skilled players nowadays. It's not a requirement to be a good perimeter player or PF to be that tall. The advantage is supposed to be how skilled a player is for being a certain position. Like maybe an actualized Poke would be a center who couldn't be guarded by his own position (too skilled) or any lower position (too big). But the thing is, he's not too big. We're talking about him hopefully being a good PF in the league. If he plays there, his perimeter advantages are not nearly as striking. He could theoretically shoot over smaller guys, Dirk style, but Dirk was heafty enough to create space with his back to the basket, which Poke may not be against PFs, and even if he can, that's not really considered to be a good shot anymore.
I'm not saying he won't be good. I'm not a scout (don't even play one on the Internet), and I'm sure he looks good on tape. I am saying that's probably at a level where his physical advantages (height, length, skill for his size) are outweighing the disadvantages (lack of strength, potentially mobility and posture issues). In bigger leagues with more experienced players that may change. And you can expect Poke to get at least a little better, but the NBA is so much better than a Euro youth team that he could get A LOT better and still not be good enough. That's not a reason not to draft him, but it is a reason to be a bit more conservative when looking at his footage. There's a big gap between what a player can do when he's the most talented player on the floor and what he can do when he's not the most talented player on the floor. The same way Metu looks awesome in the d-league but awful with the big club because he's too ambitious for his skill level, Poke may well not be able to do a lot of the perimeter things he's showing now at the NBA level. He may come over and even stick in the league while only having part of his game translate.