The writers shouldn’t have hated Fluttermac to begin with, and if they “never interacted” with each other, they at least should have episodes with them interacting instead of pairing Fluttershy and Big Mac with someone else instead of each other.
If anything, Sugar Belle should have paired up with somepony else other than Big Mac. But no, the writers hate Fluttermac.
And If anyone says that was never a thing in the show or in canon. Then answer me this? What was the point of the ship if it’s never canon or will never be canon to begin with?