"Oh, honey. It'll be perfect for the baby's room!"
Part of the fun of science fiction is wondering what's out there: what strange, alien life waits for us out beyond the stars, with weird alien motivations and bizarre physical and emotional manifestations. It's part of the sensawunda that drove Golden Age SF and which you can still find in the pulpier fringes of the genre today. Let's be honest: aliens are fun.
The quickest way to a gag cartoon is to take a situation, and flip it: take the ordinary and make it bizarre, take the incredible and make it mundane. Of course there will be giant, alien space squid. But they'll smoke pipes and have a 1950's home life, and they'll use space shuttles as mobiles.
Of course they will.