From my perspective, making security guarantees about a product is the same whether that product is software or hardware. If somebody guaranteed that their ferris wheel had x safety feature, then it turned out to be untrue, nobody would call that a minor infraction.
Obviously we should be utilizing critical thinking ourselves, but I think that we also need the threat of punishment. Because if we have that threat one critical thinker can report the problem and it will be solved for everyone. If there is no punishment then there is no incentive for companies to tell the truth.