The previous Machina generation was never going to let go of Jason's actions against their people. They would've always been filled with hate, so Jason knew that it was only a matter of time before they attacked Earth again, and it would've been difficult for Jason to ever work with them. But now that they were gone, Jason could erase that dark past and allow a new generation to take over. Jason would take these babies to Earth and allow them to grow, and in the meantime, he would build the world of the Machina like he had been instructed to by the council. By the time these babies grew up and came back to their world, rather than being enemies of Earth, they'd be Earth's greatest allies. Jason would make sure of it.
