People tend to like something that they could understand or make sense of.
Even at first NiGHTS was rather a confusing character for me. At first I thouht NiGHTS was female.
But then many magazine refered NiGHTS as him or he.
And then SEGA said NiGHTS is genderless.
Twice that I have to correct what to think of him/her.
Way I figured, NiGHTS was suppose to be a franchise where given it's established to be set in dreams require to have your mind as opened as possible for it. No matter how confusing or crazy the characters or stages are, it's "dream logic". If anything I find it impressive and deep when NiD and NJoD use
dream interpretation to detail the childrens personality traits.
For example, the reason why NiGHTS has a british accent in NJoD is because the chidlren are from Bell Bridge which I pressume is based on London, that makes the kids british. But I believe that Wizemen and his creations are incarnates of their NiD-selves, with Wizeman, NiGHTS and Reala being the only Nightmarens who retain their identities.