That closure is to prevent someone from uploading a game and then suing Itch because the game is available in the newly created itch app for android or because an image or video of the game appears in some Itch promotion.
Entering Itch, without first asking the reason or meaning of the closure, if not, demanding that it be changed simply because it seems wrong to you (actually, you are misunderstanding). You're the one with the problem, not Itch.
You have no obligation to publish here, if you don't like the license, don't publish and that's it.
Go to Steam, GOG, etc. They have similar text in their licenses if you want to distribute with them.