- are likely to be, if not mostly, 15-to-22 y.o. teens that arrogantly think they can build a WoW-killer (metaphor)
All those points were great except this one. It's not so much an issue of your actual point, but instead with the term "WoW-killer".
No MMO should be a WoW-killer.
When people say that's what they're making, they imply that they are making a WoW-style game with "enhancements" (ie SWTOR, Perfect World Online, LotR Online, D&D Online, etc.). My brother, who used to be a WoW junkie, would take breaks from WoW to try out other MMOs. He would always say the same thing, "[WoW-killing gimick] is fun, but the overall gameplay pales in comparison." WoW will simply remain the best game of that format. Does this mean that people should stop trying to make MMOs? Of course not, they should simply break into a new format of MMOs (Maplestory is a great example of this).
More of a rant instead of a counter-point, but it's whatever.