You can do this with rotating fluid and the proper conditions, its not always a hexagon you can get anywhere from a 3-8 sided shape, Saturn rolled 6 humans respond with mythology-inspired flipout. Ur move gas giant.

Seriously though, what is he going to do, fly to Saturn and issue a formal complaint about its fluid geometry? You can't complain in the vacuum of space. When will these silly sorts realize material reality cares not for your idle judgements of it.