The irony is that the Horsemen would suffer from the the opposite problem when the nWo was around, more or less being a group of inneffectual tweeners/babyfaces, who came out and shouted a lot, but really never were able to strike back against the New World Order.
Really the best example of a heel stable in WCW that was able to become strong, but was solidly defeated in the end, was the Dangerous Alliance.