Air bag recalls are super common too; mine had one a good while back since the chemicals in it decayed and basically became unstable. Safe until deployed kind of issue.
Bob just is a master of incompetence.
Again, Bob is a crayon eating curtain gazing retard who even at the age of 40 still believes that nerds should be like the ones on bad 80's cartoons and TV shows he rocked back and forth to as a particularly stupid child with special needs. You know, the ones where they happen to know all the fields because they need to be the smart one for that situation?
Bob still believes that is partially what a nerd is. He also threw a fit and tried to redefine nerd because he got angry his grades were shit, which was part of the definition.
I can understand his ignorance if I could chalk it up to never slowly disconnecting with juvenile entertainment as it appears he did not by his obsession with comic, cartoon and videogame characters well into middle-age and to a degree that indicates he isn't just nostalgic about them or a fan of their mediums, but, passionately enthralled with the characters as if they were his actual friends or real-life people, much like a child.
Lots of stuff you could pick up by reading or a hobby, or just paying attention to the world as it goes by? Like how a recall works? He genuinely doesn't know about because that's boring "adult stuff" or "irrelevant" based on his favorite show(s) which is the center of his world. Literally all that matters.
His idea of what a recall is probably was shaped by nothing more than a throwaway line in some cartoon where the Bad Guy threatens his robot sidekick that if the current evil scheme doesn't work? He'll have the robot "recalled" and the bot' pleads "No! Not that!" From a marginally-funny gag, he extrapolated that it must mean that the recalled item goes in the trash compactor and never bothered to look any deeper.....
His perfect medium wouldn't tell HIM a lie! And he's so smaht (tm) he wouldn't be remembering that scene wrong!
And yet, he makes so many errors ABOUT his life's one great obsession (Historical errors, IP rights errors, continuity in canon errors, etc) and presumption that every "normal" and healthy person surely holds the same reverence he has for the bing bing wahoos..... that I wonder how smart he really is. How can you devote your life to something and end up less informed about IT than some laypeople? If you were smart, surely you'd have at least competence in whatever you spent the largest amount of time on? Right?
I can only conclude that he's, just, well....
Stupid,
On top of being in a form of permanently-deferred childhood since he firmly believes he knew everything he had to know by the time he was 12.
He wishes to live in 6th - 10th grades, forever, convinced he's at the top of his competency and social power at that point - while still getting "C" grades and being bullied remorselessly.
Dumb, and too dumb to ever notice it.... the essence of Dunning-Kruger indeed.