IMO, that is all BS. Anything in that realm that has been scientifically observed as been shown to be false, trickery or flat out lies. That kind of stuff has been talked about in martial arts for years (I've practice a MA a bit myself), and it is mostly lies to make martial artist seem more mysterious and powerful. Thus, if you want to do them - its magic.There's been suggestions of remote viewing, telekinesis, people bending spoons & monks slowing down their metabolism to endure sub-zero temperatures, etc IRL. This to me is closer to psionics than calling it magic.
However, I do acknowledge the mind can do fairly amazing things with ones own mindy/body. However, telekinetic powers, attacking other creatures, or really anything that affects another object or creature - 100% magic.
I personally don't mind psionics having different game mechanics (I liked the psionic die), but it would still be magic by a different name. In fact I could see several different types of magic having different game mechanics: arcane, divine, and psionic magic could all have different mechanics if you ask me.As far as I remember 5E doesnt use the supernatural designation anymore does it? Up until 3E Psionics were separated from magic, was its own system and added its own flavor to the game, thats why non-psionicists had very little defense against psionic powers.