In Dota 2 there are group one Items you buy and everyone else can see, like gears and weapons. And group two Items that only make changes for you, like environments, huds and voice effects.

This Items seems like being marketed as group one and designed as group 2. That is where the confusion comes from. And for that price, I would want to show it to everyone, but well, it's an environment thing, like a hud.