I'm saying that he can't just "grab" his lightsaber in mid swing and stop it. It's not tangible. It's not a solid matter so you wouldn't be able to grab it. It a beam of energy. Can you "grab" light from a flashlight? No, you can't.
Yeah but u see.. If we are comparing lightsabers to flashlights, and one can't physically hold the flashlight beam, then why can another flashlight beam physically "touch" it?
I'm referring to the lightsabers. They should be "intangible" as you said, but since a lightsaber can be blocked by another lightsaber, what you are saying doesn't apply. If some material existed, that could also block a lightsaber beam, besides another lightsaber beam, then why couldn't that substance be used in combat? It shouldn't just pass right through the lightsaber. Star Wars isn't like that.
Think about it like having a lightsaber that extends around one's arm/hand or w/e bodypart. Then using that arm covered in laser or light or cortosis, and stopping the blade. I think its pretty concievable that Bane could do that.
If the book said that orbalisks oculd block lightsabers, then they can. You can't really argue agasint that u kno...
And ur question about where it says Bane's hands are protected, in ROT, during that last fight, It said that Bane's only weaknesses were his ankles, wrists, and head. It didn't mention hands.