User blog comment:Red Chevalier/PE Proposal: Barlckxs/@comment-5555139-20200218071807

This is an easy yes. Quartzer SOUGO is messed up as hell just as Swartz and Tid combined, in fact SOUGO has the same modus operandi as Tid in that they intend to erase all the Heisei Riders from existence for their own respective goals and hell, both of them are killed with 20 Rider Kicks to the face!

Even though TVTropes had put Ohma Zi-O into their Complete Monster entry, I definitely agree with you that Ohma Zi-O doesn't qualify to be PE, despite already having innumerable body counts, but what keeps him from being qualified is his lack of screentime, appearing a small number of episodes.