Yes, I think you're wrong about this. He has a looooong way to go before an NBA team would use a first round pick on him. Michigan State, a physical college team, completely took him away. Against Purdue, when he dunked the ball, that was a WHOA moment. However, the very same play a few minutes later, he tried to lay it up off the glass and missed the entire rim.
As of today, his offensive game is very limited, he doesn't play through contact and he misses bunnies that an NBA caliber center jams. As you've mentioned, in the NBA, your game is expected to not only extend 15 feet offensively, but extend out to 15 feet defensively as well.
I look at a guy like Udoka Azibuike at Kansas and that's what I see three years from now for Kofi. He had some injury issues early at KU, but he was then what Kofi is now. He was a big, strong, athletic guy that could only play three feet from the basket. He was very limited.
Fast forward to this year and the guy absolutely dominates. He's a dunking machine, he has multiple moves in his arsenal....he's a complete game changer on both ends. That's where Kofi ultimately needs to be and I think he'll get this. It's going to take time. He's got NBA size and strength, just not the basic skills.....yet.
Just my opinion.
P.s...if you go to a few draft websites, Udoka is projected as a second round pick.