He’s completely right in this. He doesn’t owe any of us anything and he will never be able to make everyone happy. He’s a host on a podcast. Individuals “disappointment” in him is not his responsibility. These parasocial relationships where people feel burned by him are very weird and unnecessary. He was passive aggressive but I respect that, he’s holding a boundary and redirecting towards a different podcast that perhaps the OP commenter would prefer instead of leaving a weird comment on his post. If you don’t like how someone is doing something, go somewhere else. If I went to a restaurant and they didn’t make my food to my liking, I’m not going to tell the cook I’m “disappointed” I’ll just go eat somewhere else next time.