>Off topic, but is there a name for peoples behavior where they barge into a topic

I believe the proper name is "having one's bullshit called".

And yes, when a pair of headphones self-ignites and causes bodily harm, we better immediately and loudly take the side of the person that suffered injuries, and demand the manufacturer to be held accountable. I have provided plenty of nuance elsewhere in the thread as to why we should do that; you're welcome to look there.