You're proving my point here.
People only think that because they want it to be an E ticket. As a C ticket, it might be the best on property -- it's certainly much better than other recent C tickets like Frozen Ever After.
It's not the ride's fault* the wait times are what they are -- although I think the wait times also disprove the notion that the average guest doesn't like it. It's not like it's a new attraction; it's been open for almost 7 years now and still gets long waits. Yes, the park has capacity issues, but it's not like Dinosaur or Kali River Rapids get anywhere near the wait times that NRJ gets.
WDW would be in much better shape if they built several more C tickets as detailed and immersive as NRJ.
*except that the capacity is too low; that's a design flaw. Almost everything else about the ride's design is excellent, other than the Shaman ending as discussed elsewhere.