...power double is all you're worried about? ...not leg hooks, suplex, or getting clobbered until you let your guard down for 1sec? Even i know this stuff XP
To use the Nate vs Mcgregor fight as an example, assuming my (definitely not drunk at the time) memory isn't too hazy, Nate dragged Conor away from the cage at the end of round 5 and swung him off his feet. Are you going to grab the cage when your opponent drags you away from it? If you grab the cage, are you ready to get battered until you start using your hands to clinch again?
I'm not even going so far as uchi mata's, or other 'forward' throws...
No way is being up against the cage a way to avoid takedowns