Yeah, but... How did they even come up with the idea in the first place? If he were the Top's kid or something, sure, you find out the Top had a son you might well assume his ladylove is the mother, but... his dad is not the Top. Like, was Boomer trying to pull a fast one on Len, or something ("this kid's your nephew, and therefore your obligation")? Why would that even be necessary, when the Rogues already take care of their own? Did someone just not want to have to explain how the hell Boomer Sr had sex with a woman from the future and how her kid got back to the present, so they just picked a random familiar, conveniently dead-and-can't-contradict-this womb? IT MAKES NO SENSE.