Huh?!
Listen, I'm one of the biggest Hakeem supporters out there, but don't frame that statement like that. Go back and watch that clip and listen to the commentary. The Rockets were up 10 and Dream pulled that three with 13 seconds left. I'm pretty sure that was a "this is for fun shot" and not an ice-cold-water-in-my-veins time-running-out-in-Finals-down-2 three-pointer. If he misses that shot, no big deal.
As far as comparing Hakeem to centers throughout the history of the league I put him easily top three and I often place him on the same level as a Kareem Abdul-Jabbar. I'm not sure how you can compare "better" or "best," but the thing I often point out is that Hakeem Olajuwon was the most well-rounded center, possibly player, in the history of the league. How many 7-footers can record 2+ steals and blocks per game in the same season (it's been done by only three players since the recording of those stats; Once by Gerald Wallace, once by David Robinson, and four times by Hakeem Olajuwon). He has recorded two quadruple doubles, even though one was taken away from him afterwards with the claim that he was given one too many assists.
Anyway, whether or not you think he's the best, I think it's quite obvious that he was the most well-rounded big man in NBA history.