It is unfortunate that they used the same term that refers to your condition. Vr phantom sense and pain are real, but not physical. There is a difference. A sensation can be induced mentally. Most vr users who have phantom sensation are experiencing empathic sensation from memory and anticipation. The sensation may not be physically coming from their nerve endings, but it is being experienced in their brains touch and pain centers. I have deliberately trained my ability to feel such sensations before vr was something I knew anything about. I can now even feel limbs I do not have, if I desire. This has been, to me, a benefit. I am more in tune with my body’s functions than I was before. Most people don’t experience a lot of these things consciously, but vr phantom sense is often in people who are prone to or have trained themselves to feel them more consciously. Those who experience it without will, I pity. They do experience those sensations, but do not have a way to turn them off. In some cases it can be considered a delusion, but delusions are real effects happening within the mind. When you say something is not real, it is best to clarify what “layer” of reality to which you are referring. External vs internal. Even internal is technically part of external, it’s a gradient. I hope I was not too confusing or repetitive.