OK, I gave that 5/5 despite the catastrophically ill-placed humour.
I'm surprised how interesting the Krill have turned out to be. When I saw them in the trailer I thought they were a bad joke version of Krall from Star Trek Beyond. I even confused the two, and thought Orville would end to be a shallow parody with the token one-dimensional foe as horrible as the guys from Voyager with the greenhouses on their heads, but slightly better rubber suits.
Within a single episode they were better developed than any guest species from Star Trek, and given the inconsistency and gaps in the portrayal of Romulans and Klingons, I'd rather learn more about the Krill now than I did about those two. After not even wanting to see them, I'm now excited about where the relationship would develop.
It's also fascinating that they are the third xenophobic supremacist culture in the series within 6 episodes, if we include the Kaylons. And all three are totally unlike each other, with a Kaylon serving aboard the Orville and providing aid against the other two on both occasions. (We haven't freed any Krill from that zoo yet.)
And there was something awfully familiar about that religious ceremony. I can't quite put it.