Very valid point!
I think writing off all intuition as delusional without taking the evidence into account is not a good approach to helping someone. At the least it undermines the trust of the patient.
It can be tricky for a pdoc to assess this in a short 10-15 minute interview. A good pdoc with their wits about them is probably looking for other signs of unrealistic beliefs and behaviours when making a diagnosis of psychosis. If they think you are misreading them (the pdoc), they may have grounds to conclude that your extrasensory perception is not as real as you believe it is.

I have had very powerful awareness of the souls and emotional states of people around me, mixed with very strange experiences of music acting like waves of water washing away the masks from people's personas. I think it was the meaning I attributed to the various experiences that seemed so off beat that persuaded my pdoc that I was floridly psychotic and needed to be hospitalised. Since I was quite impressed with my new abilities, I was in no hurry to go.

I still wonder at the truth of what happened though. There was evidence that my awareness was not off track, despite the mystical packaging it came wrapped in.