The X-Factor, a show that features musicians and performers vying for a record contract, has yet to comment on whether the show will in fact air with the dolphin segment included. The Dodo has reached out to the show for comment.
Meanwhile, animal advocates have already praised Cowell for his statement - and the petitioners who brought the issue to light.
"Thank you to everyone for signing petitions, sending tweets, and expressing your concerns," Candace Crespi of the Oceanic Preservation Society told The Dodo. "You did it! Most importantly, thank you to Simon Cowell for taking a stand against animal cruelty. As Margaret Mead once said, "Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has."