As it turns out, you don't actually have to worry about any of your wingmates jumping out in this mission. Provided you get to the node in time, any of your wingmates that are still alive (which should ideally be all of them, since there's not a ton of Shivan resistance in the mission) will appear with you in the final mission, Good Luck, whether or not they physically made it to the node themselves. It's a bit counterintuitive, but that's the way the mission is designed. I did manage to get everyone else to the node in time once by keeping them formed on my wing, just for the hell of it, but it's not necessary at all.