Because she’s a teenager. Sometimes they don’t do what you tell them to. The response should NEVER be “beat the shit out of them.”
Even if the appropriate response is to physically remove the child from her desk (I disagree, but that’s besides the point), this officer still failed at even doing that correctly. If he was not capable of doing it without severely physically injuring her (obvious, from the result), he should not have attempted it in the first place. The appropriate punishment for “refusing to get out of your desk” is not severe physical abuse. And the fact that you think it is really speaks volumes.
