Yes but teaching things during dungeon runs would completely break the flow of those runs. If I put optional signs for reading in front of some jumps explaining all the possibilities, players that would read them would feel like I am just extending the tutorial with more writing about some edge cases.
I wouldn't add signs there. Just give the player the big jump, and include a room with a very large wall that requires that jump. Maybe add the explanation in the pause menu. But I can also see your point of view.
Good luck with the further development, I'm looking forward to it!