Just imagine the conservation between the animators.

Animator #1 "Hay I think we should give them full body costumes. What do you think?"

Animator #2 "Don't you think covering their cutie marks after five years of waiting seems a little mean?"

Animator #1 "I know… I just have this feeling…"

Animator #2 "What? You think that this episode is going to get leaked and because the CMC happen to be in one shot it will spoil years of buildup on their cutie marks? Yeah like that's going to happen…

Animator #1 "…"

Animator # 2 "…"

Animator #1 "…"

Animator #2 "Beaver costume?"

Animator #1 "Beaver costume."

This episode was produced BEFORE Crusaders of the Lost Mark. They are still blank-flanked under those costumes.

Scare Master was supposed to come between Canterlot Boutique and Rarity Investigates, but they pushed it back so it could air on Halloween.