You are not going to find any BJJ school in USA with training intensity equals to Olympic judo/wrestling.
I used to wrestle in high school. Currently, I train with AOJ and ATOS competition teams twice a week. The training intensity with AOJ/ATOS competition teams are no where near high school wrestling let alone Olympic caliber wrestling team.
Well it seems like a BJJ training center somewhere equipped Maia and Jacare to be able to deal with many, if not necessarily all, Olympic wrestlers and judoka in an MMA setting so I was wondering if training centers like those for BJJ exist in the US, places that could enable BJJ artists to rise to the level of those two I mentioned and where would they be. The training for your ATOS teams may not have given BJJ artists the speed or power or endurance of Olympic judoka or wrestlers but some kind of BJJ training allowed BJJ artists in the UFC to be able to deal with those kinds of grapplers. Where in the US could one go to become the next Maia or Jacare Souza?