The U of Buffalo concussion clinic is more about getting athletes back on the field than recovering from all of their PCS cognitive symptoms. As time goes by, I think the shortcomings of their approach will become more evident.

They specifically state that they make no claim to their program prognosing nor changing the risk of future re-injury.

This is not to say that there is no value to the Buffalo protocol, just don't think of it as a cure-all.