I invite you to read both the claims and the judgements related to the Instant Pot lawsuits yourself; they're all quite clear, and you can come to your own decision about how reasonable they are.

My read is that people overpowered the safety interlock, after which the lid (predictably) flew off, and they were injured (mostly by the hot steam and bits of food). I think it's ridiculous for people to expect safety mechanisms to be impossible to bypass, but maybe you disagree!