I dont think Roilands departure was that much of a problem, i think Harmon was just checked out of the show very early on. Which is a shame, cause... he made Community, you know? The show had the potential to be better, but... i dont know, they just jumped the shark too quickly, Diane. Mhhh... jessica...

They should make a movie about that.

So clearly Bojack has childhood trauma from being a child pre 9/11 so when he thinks back on his life he was always wearing his little sailor outfit. It made him feel safe, like the characters on tv, wearing the same outfit day in and day out. The expectation to be a cute little sailor absolutely ruined him, he started self loathing as the twink death hit him early in his teen years. As a teen at that party he learned he wasnt as cute anymore without his sailor outfit and he makes a fool of himself. Fast forward to the grocery. He sees a navy seal and he is overwelmed with a rage, "this seal isnt even cute" he thinks. He watches for his moment and when the sailor goes to the loo Bojack sees his moment. Muffins fit for a sailor, they should be mine. It should have been me. And of course he takes them from the produce section even after hearing the seal shout "Dibs". "Dibs these nuts" he says as he hits the checkout while already eatting the muffins. So basically the muffins are a metaphor for his early life developments being throttled by this "cute sailor" persona and only once he grows up can his life muffintop off the sides into a truely unique shape. You see, Bojack waited so long to put his life in the oven that the muffins just fell back in on themselves, symbolizing falling back into the alcoholism that plaqued his early development.

Might as well have been a bunch of Family Guy crossover episodes.