What everyone seems to forget is, aside from the Gracies, there were no really exceptional ground fighters back in 93. Everyone fought to represent their respective discipline, whether it be TKD, Shotokan, Kung Fu, Kuk Sool etc and the fighters werent anywhere near as complete as they are today. Its evolution, but Tyson entering the original format of UFC could have been very successful because it was NHB and traditional martial artists would have almost no idea how to defend against combinations like he would throw.