Let's not forget there are two types of intuition: introverted and extroverted. Ne usually seems more creative and innovative than Ni. Überfuhrer even suggested both Ne and Se are more creative functions than Ni. The people you talked about sounded like Js, so if they were Ns, they would have Ni. That might explain the lack of apparent creativity. I would be very sceptical of a person being NP, having Ne, if the person wasn’t somewhat creative though.
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