The heresy is great in this one.
Though, are ponys Xenos or Mutants that strongly resemble the Terran Horse? Would they be useful like the Jokaero? Hmmm... We'll need a Magos Bioligis to dissect a few to figure it out...
It's not about having or needing a sense of humour. It's about ponyfans and their idiotic need to infect absolutely everything with cartoon horses. It's not quirky or funny or cute. It's not original. It's just annoying. You like the show? Yeah, cool. Just don't involve the rest of us.