On the Remnant thread Bucket mentioned that someone busted all his AT-ATs by throwing airspeeders with the force, so yea, it is a bit of a problem. But one that can be surmounted by base intelligence, take this.
On another site's thread, I played a Faleen Sith that had virtually no force power skill whatsoever, but I ended up being the leader of the galaxy. Why? Well, one of the other players was like the players were talking about, 'cept worse. He wanted his character to be almost exactly like Anakin Skywalker, so he made him uber, very uber. I manipulated him to be my apprentice, (Claiming we were "Equals") and used him to basically defeat all the other factions. Then I slapped on a Taozin amulet and back stabbed the sucker. And boom; Emperor Adar, (Well, my name wasn't Adar but you get the picture.)
The thing is, them being that, it's a disability, not an advantage. Sure they can turn you're AT ATs out, and a lot of people want to be all "Galen Marek" on ya. But they rely on the ability to be all-powerful so much, when they lose it, when it's countered, when they make a tactical mistake, they can't think on how to react.
So bring on your Ysalamirs, your Taozins, your cortosis, your force dead characters, heck even bring out lowly sonic grenades, the sound'll break their concentration.
And if all that fails, you've still got your OOC wits, and that's something you'll always have over the noobs.