TF2's Engineer update continues with something insane

I know not all of you out there are avid TF2 players, but this is too nutty not to post. The latest TF2 update reveals the Wrangler, a way for the Engineer to control his sentry, at the same time protecting it from damage and increasing its fire rate. The only downside (other than replacing your pistol) is that the sentry is inactive for three seconds afterwards. Overpowered much?!