Random aside: I was actually sort of hoping that with the main issue here being one of twisted love (Cosmos for Discord) that Cadance would play an important role because its her domain.
I also find it weird actually that the comics made there be six stars. I mean lets be honest here what they wanted was the idea that Cosmos gets all four Princesses so I find it odd they added in Big Mac and Zecora. Don’t really see the point. I think it could even maybe have been a bit better if they’d dropped those two since that would have allowed them to use #76 to develope the events a bit more rather than just having some brief scenes about getting Mac and Zecora.