I don't hate the idea of putting Styles in the X division.
Mainly because he's already pinned all the heavyweights...and anything they do with him there will have already been done.
In fact...I think this is exactly how they should use Styles, spending half a year in one then going back to the other for the next half to keep it fresh.
Think about it...TNA hasn't had Styles vs. Sabin, Shane, Daniels, Juvi, Dutt...there's a bunch of fresh and good matchups to tackle.