Most of the WWE roster at that time had been broken in/trained by old school territory workers. WWE has been trying to replicate that somewhat with NXT. But really have failed. Any of the successful ones through NXT on main rosters are either generational talents or got built up by ROH or foreign promotions.Makes sense. Jericho talked a bit on the attitudes the established WWE guys had against the WCW guys just a few years prior. Can't imagine they were all that welcoming to a bunch of guys that didn't come up through the system.
Show was pretty much piggybacking off of other reality tv shows that were exploding in that era; real world, big brother, survivor, etc.