SO IS KERBIN!
I blame Project Intrepid! That totally wasn't my fault!
I'm one of those people who love it. IT'S THE FINAL COUNTDOWN!!!
Are you sure the engineers are Humans and not Kerbals? Humans never forget that kind of thing. Kerbals forgot that, and struts, and fins, and aerodynamics, and a few dozen other things pretty much every single launch.
Something tells me that you've already somehow made the rocket powered merry-go-round part of your actual Jool 5 attempt... Maybe a rocket jet propeller merry-go-round for Laythe?
THE WORLD IS ROUND! ALIENS (probably) EXIST! PUT HIM ON THE HYPE PLANE 2.0 WITH SOME KERBALS AND SHOW HIM THAT THE WORLD IS ROUND! Or just try to make him explain how orbit works.