It's a fair argument and makes me think I should have them closer, but I would say it's more of a boost to Sidy rather than dropping Coulibaly. Here's why I still have Coulibaly higher atm:
1) Coulibaly's numbers this season are extremely impressive and it appears that his development is in high acceleration. However, it's important to note that his big numbers come from the U21 team, not the senior team where Wemby is playing. He is dominating the U21's as a high usage player whereas on the senior team is a very low usage 3&D player. It's hard to compare across leagues of different levels of competition, but I like Coulibaly's potential as a scorer. He comes with a high ceiling and high floor IMO. I think as far as shot creation goes I have more hope in Coulibali. It's a little unfair, however, because Sidy is playing in a 16% usage role right now and doesn't have a chance to be in a 27% usage role like Coulibaly is in the French U21 league. If you only saw Coulibaly's French league numbers you might be swayed towards Sidy.
2) It's only a 7 game tournament, but I would also expect Sidy to be further along in development because physically he is way ahead. This could also be seen as a positive for Sidy, but he looks way more jacked/physically mature even though they are similar age. I think Bilal will eventually catch up with his frame, but maybe he doesn't. Could go either way with this one....but looking at Coulibaly's frame and dimensions, I have a strong hunch he's going to be one of those guys who grows 2 inches and adds 20 lbs in an off season. Sidy was definitely better in that tournament, but I think Coulibaly will develop faster.
I think Sidy's numbers in the G-League are much better than they were the last time I checked in on him, so I'm definitely feeling the need to bump him up. He jumped off the screen the first time I saw him in the Ignite vs Wemby game. All three French wings are pretty impressive from a physical standpoint. They add a lot of depth to this draft. I think both Sidy and Coulibaly will end up being drafted way higher than they are being mocked right now. They are two of the most physically impressive prospects in the draft, and they both have some skill. Certainly more impressive than the American prospects of the same mold/age (Phillips, Mitchell, Walsh).