You were missing HGST
I also think what you said about bad batches and maintaining brand and model diversity to protect against those type of failures bears repeating. If you favor the same model drive, even in large redundant arrays, you may have a bad day if the model has a problem and starts to choke.
As to the brand reputation, a bad batch is a huge problem, but a bad response from the maker is worse. We were using the IBM Deskstars (aka Deathstars) in shipping security appliances and spent quite a while mopping up the mess those created. IBM wen't into denial, then hiding, then finally bowed to pressure from it's OEMS and started a recall. Which we then had to sort out how to handle in the field, and deal with customer who lost log data due to multiple failures across multiple drive arrays.
So now I mix brands and batches at different levels of the storage tiers, so that a bad drive model can't wipe out a whole silo of redundancy.
I also feel for home users, who have neither the training or know how to handle something like this without losing data. WE should know better, but they don't, and they shouldn't have to.
Their laptop, which probably doesn't have resilient storage, didn't come with real backup software, and wasn't bundled with enough external storage to backup the machine.
So we (as the tech industry) set them up to fall over with a failure like this, and too many schools literally teach their students to just carry around a flash drive with all their academic work on it.