I say this because as you say, Square is stingy. So Neku fits that cheapness perfectly. Plus, due to their recent losess, I think they need all their games selling exceptionally well. From all their console recent, I think TWEWY is the lowest on that chart. Dragon Quest, Final Fantasy are bigger than Smash. So maybe they don't need that advertisement bit as TWEWY. Just a guess.
Nevertheless, I'm really thrilled to know who the Square rep is, and how that bodes with your knowledge
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Here's that Calling song (I need to give this game a try soon). It gets my vote for sure. (ohh now I feel more how you felt about 2 pieces. Man this song needs to get in Smash, although songs are harder to get than music)