I don’t know anything about these rabbis, but I do know this:
Catastrophes do happen because of aveiros.
What they said last time may have not been a wise thing to speak publicly, and probably ridiculous to claim because we cannot know the reason (as Oomis rightly points out) but why are you so sure it is wrong, that you make fun of it? It sounds like you think it is impossible that is the reason.
Oomis: I disagree with you somewhat. I think that anything that happens is precisely what G-d wanted to happen, and that He orchestrates it happening. I think G-d made the Holocaust happen, purposefully, and willfully. I also believe it pains G-d to hurt us, but it pains you when you go to the dentist also and you still do so willfully purposely and intentionally.