So about jump.

[Preypacer]

You speak of realism... in a fantasy game?

Oh, right... this is where people begin to selectively pick and choose when realism is okay/necessary and when it isn't.

If it suits them, it's appropriate. If it doesn't suit them, "No freaking way! Not in my game!"

Jumping was requested/demanded in part because it's more realistic for people to be able to jump. In that case "realism" is not only acceptable, it's downright necessary.

Mention that it's ridiculous to believe that several full-grown people could feasibly jump on a cloth tent without the thing collapsing, and suddenly, "What? Realism? In a fantasy game?"