Avio scooping up would-be SpaceX Transporter customers was not on my bingo card for this year...

Pedantic semantic point ...

"I can tell you SpaceX has already gone captive because we have a whole bunch of customers coming to us and saying, oh my God, can you fly us?" Ranzo said during the company’s 10 September earnings call.

I'm not aware of "gone captive" really meaning anything, at least in British English. The best I've found is that, pertaining to animals, it could be roughly synonymous with 'domesticated'. E.g. tortoises