Just because there isn't a Meta Knight doesn't mean that we don't know what we're doing. If more players feel more comfortable with Marth or Snake or ROB or whoever, then maybe we (as NC smashers) could perform better than if we were unused to MK, or just had to play him to win despite how much everyone loatthes him.
It's not like there aren't MK mains in NC, it's just that the non-MK players are dominating right now.
As for overall competitiveness, the top smashers in NC are very skilled. Excluding myself (because that's kinda conceited), Ali/I've Jihad it, Lord Karn, NC Echo, LoZR, and Ph00tbag (to name a few) are very strong players and feel no shame in losing to any of the others.
Really now, couldn't you have just done a little bit of research before making a blanket statement about our skill level?