And that's what I mean, we no need mb2 become to yet another shooter where everything is about gunners.
Movie Battles is unique, and it should stay unique, removing features related to jedi will nerf jedi and make mb2 less unique.
It would be just a huge nerf to jedi/sith. Good gunners already check every corner for hidden enemies, but knowing that you can't be seen by a sith would give opportunity to the gunners to ambush. Jedi can't kill people on distance, while gunners can, so gunners could get much more profit from hiding.
And why do we need make a camping easier?
Also sense mostly used not to detect ambush, but to discover how many enemies are behind the door and make a right decision about storming a room.
Do you have some form of delusion where you think that if any changes happen to Jedi, MBII will no longer be unique? That's quite the fallacy, because Jedi/Sith is not going anywhere.
Yes, MBII is already mostly made up of Gunners, but that doesn't mean Jedi is going anywhere. The core gameplay of MBII stays the same whether or not Sense is in play, for most people nothing will change, except now there's no guiding lamppost to warn you about the enemies defensive setup in the next room, which you shouldn't know anyway as it makes tactics irrelevant from the defenders point of view when you know how to react before they even get a shot off you.
Everybody has Sense, there's a reason everybody picks sense, nobody ever goes without sense if they want to be a huge boon to the team and themselves. It's too goddamn powerful it's almost become mandatory in a Jedi/Sith build overshadowing everything else, except Push. As you said yourself, going without Sense is a huge nerf to Jedi, and that's because they've become so reliant on it. I think you can play Jedi just fine without it though.
Jedi don't need to kill at a distance, because they have all the tools they need to close the distance. They can't be killed at a distance if they know where an opponent is shooting from, because they can deflect bolts, even if you do hit them, they won't die. Unlike other classes, if you get seen at a distance, you can be killed at a distance, that's why you dive for cover. Jedi have all the means they need to close the distance on an opponent, whether it be waiting for enemies to come to you or simply bum-rush opponents with skillful dodges. Jedi also have the most tactical advantage in the game, with various force-powers. The only range a Jedi is actually really vulnerable to a single gunner is close-range, where they need to be anyway to kill something.
You speak of Jedi/Sith as these hapless fools with no hope of winning, when everything in the game (except newbies who don't know what they're doing yet) points to the opposite, a good Jedi can carry a team. Not saying other classes can't do this, but Jedi play a larger supportive role while potentially being highly offensive far more than any other class in the game.
Even if they lost sense(won't happen btw), they would still be a force to be reckoned with.