Based on size and prestige, World Cup is an amazing program overall.
I will say that World Cup's fame and prestige, however, has been established mainly (not entirely) by the success of the Shooting Stars. The Starlites in the last half of the 00's as well as Odyssey, roughly between 06-08, helped intensify that fame.
The Shooting Stars and Starlites do not have competition in NJ. Neither do the Twinkles. I think what people are trying to say is that when you remove these teams from the mix of the 20 or however many other teams WC has, the majority of the remaining 17-19 teams are either equivalent or not as good as the NJ teams in the same divisions. I guess it's all a matter of opinion.
Inferior is a pretty harsh adjective, and I agree it should not have been used.