These sorts of crybaby claims about the JRF challenge have been around since its inception. I think there was a guy on here a long time ago who went off about that, complete with YouTube videos. Randi's conditions for testing are actually agreed upon beforehand, with the initial test actually taking the form of a video sent in by the claimant, performing the demonstration under conditions of his or her choosing. So these "psychics and mediums" who claim impossible or hostile conditions have only themselves to blame.
That isn't actually the problem, however. Their problem is that none of their claims have any basis in reality. When put in an environment expressly designed for investigating reality, where they can't bullshit anyone, their houses of cards hilariously collapse. Maybe the would-be magic people think this is "bullying," but surely I need only point you to some of the woo-woo treatises we've seen on this forum. Crackpots think science is "bullying."
Not that it necessarily matters, but Victor Zammit is "a full time writer and researcher on empirical evidence for the afterlife." Of course, I can't find any peer-review of his alleged experiments. It's rather amusing how he goes after Randi, because Zammit's own website features (or featured) a $1 million reward for showing that his "afterlife evidence is not valid." I don't know what he means by that, but I'm pretty sure it involves a lot of unfalsifiable claims by "psychics and mediums," and I'm pretty sure he wouldn't accept "Your claims are unfalsifiable" as an answer to his challenge.