Rushing out to fight doesn't stand a realistic chance either. They die there, the pod people are at best stuck in stasis on a planet that, until this arc, everyone ignored. And Megatron is still inside when the rest go out, which means that someone would be going in after them. Going into battle after he refuses to join them actually puts the pod people in more danger. Stealing a ship-- which would be tricky, but still doable, imo-- at least leads the Decepticons away from the fortress and also means that, if nothing else, the group has a chance to alert someone. And if they'd suffered losses in that scenario, I'd have been able to roll with it a lot better. Which is to say, at all.

The supercharge isn't part of the original plan and that's a major sticking point for me. Until Velocity gets the idea, they're intending to go out as they are. It's not a good plan or even a plan I can believe they would all agree to with hardly a moment's discussion. And then when the supercharge idea does come up, I still can't get into it because a) the fact that it can be reliably replicated at all makes me roll my eyes just thinking about it and b) there's still no appreciable change to their strategy (such as it is).