Yeah I don't know if there's some kind of authority that certifies planes for use as passenger planes, but pretty sure if there is, this one is about to be banned.

Even if the issues have not been life threatening (yet) it's bound to be more serious, not to mention people are just going to be scared of going on them. It's not like you can pick what plane you go in. Though if I recall from the time I went on a plane it does say what type on the tickets so if someone is really scared they can always cancel and rebook and hope they get another plane.
TBH I would kinda like to go on one of those just to say that I did. Can you bring a fire extinguisher as a carry on?