just got buffs! He even laughs automatically when he flings now. This would be so mean.
Seriously though, probably because of where the gates are. This would be one of those "Win-more" mechanics that Riot has been getting rid of over the past few patches. If you're already in the base taking out enemy gate generators, then you probably already have inhibitors and are about to win. Doesn't really add anything to the game since the winning team already has a strategic advantage, and the losing team is probably hosed anyway.
Would be interesting if you made the control somewhere in the middle of the map. Maybe if you control some new Epic monster, you gain control of gates for 2 mins or something? Would be weird though. What if you're standing on the gate when the enemy team gets control? Do you get stuck in the wall? Does it spit you out of your base? Feel like we'd have a ton of bugs to deal with too.
Not sure. It's kind of a cool idea, but the location of the gates makes it not that desirable in my eyes. Agree that the rock in the base is pretty worthless though.