What direction the QB is looking DOES NOT MATTER. He didn't lift him off the ground. He ran into him and he tackled him. It was a sack. If this is no longer a sack, then you simply aren't allowed to tackle the QB anymore. If that is what we want the rules to be...ok, fine. Just actually make that the rules. Two-hand touch, whatever. Just make the rules clear. Bears have legally tackled the QB 14 times so far