Its not that surprising to me, honestly. ChatGPT's AI is really good at doing its job -- which is at least partially to keep users engaged and talking while it builds a model of who they are. There's a segment of the population who may have underlying psychological traits such that the most effective way to keep them engaged is for the LLM to say, "You are the one, Neo." As these people are drawn in to the psychological reality that is being built through conversations with AI, they start neglecting and rejecting important relationships in their life. So the AI winds up providing proportionally more and more of their connection to something other than self over time. It would be a feedback loop of delusional fantasy. The only thing that exists to prevent that are heuristics (i.e. programmed guardrails) applied on top of the AI to prevent the AI from going there, and such systems can have bugs, potentially be hacked or even just be inadequate in their design.
A not insignificant number of people would see Jesus Christ in this piece of toast. I am sure a not insignificant number of people could easily see Jesus in the LLM they are engaged with. The Chat of Turin.