Not even close. It contacts the receiver trunion in the back, the lock-button thingy in the front where the gas-block/grip system rig is, and I think the charging handle has a pin that sticks into that zone as well for a 3rd point of contact. And on top of that, it has the front grip hanging down, which user can use exerting a lot of variability of force, depending - or the user can choose not to touch the pistol grip, but it's 4+" long on its own, sticking down, resulting in a good bit of moment-of-inertia on its own.
On top of that, it jets quite a stream of gas into the gas-block, and then ejects a lot of that gas. Combined with a mass of a short-stroke gas pistol that's probably starting to move while the bullet is still in the barrel.
As gun systems go, it's kind of as inherently inaccurate as you can get. What amazes me, is that they can still be made to shoot 2 MOA, and even tighter on a good day, with the right ammo (usually; though mine seems to have opened up to closer to >2.5 MOA), and holds a zero even when the barrel is popped on and off.