Why would Huber half-heartedly swing the skateboard?
If he believed Kyle was an active shooter why would he "pull" his punches so to speak. If he didn't believe Kyle was an active shooter than he didn't have any reasons to attack and disarm him.
That's a good question, and it's a shame we can't ask him.
My personal opinion is that he wasn't trying to use the skateboard as a weapon, he was trying to use it as a shield, or to give him a bigger surface to push the gun with.
Either that or that the idea came to him too late to swing fully.
Those are both good questions though, and I don't have answers to either.
If he believed Kyle was an active shooter why would he "pull" his punches so to speak. If he didn't believe Kyle was an active shooter than he didn't have any reasons to attack and disarm him.