Poly speed disaster at keeneland

One of the supposed advantages to this surface according to its website is that "it maintains unifomity in all conditions".
I guess its just a uniformly speed killing surface.
I only bring this up because most great thoroughbreds in history had great speed.
I don't think Affirmed, Spectacular Bid, or Seattle Slew would be in the hall offame had they been raced on it. They may have ended up as claimers.