Interesting question. I have no professional experience with NLP. I'm afraid I'm only familiar with NLP from Wikipedia which calls it pseudoscientific, and anecdotally from an incredible therapist I worked with once who mentioned she loved NLP - but we never did it so I can't assess its efficacy in any way.

But in general, there are many approaches that recognize the natural multiplicity of the mind, and IFS overlaps with the stance that that's normal.