As more and more season of the Simpsons are made, eventually the entire English language will be Simpson quotes.

A Shit Show - The AVClub

Harmon kinda makes a perfect sense to punch things up too. Bringing Harmon in to make the tone more MCU makes sense given how much of that tone was set by Whedon. Both are sort of known for pop culture references and ensemble casts.

"It's me, your arch-enemy Deen-mammu"

I thought it was funny

Six Seasons and an unrelated Super Hero movie

I am the Kwisatz Haderach, Girl Friend!