What’s frightening is your lack of logic (and btw since there’s only a small number of affected machines, you may _never_ see one).
It may be as simple as this: Apple has identified a marginally under-spec part (or one that’s less reliable than it should be) based on failure tracking. Could be 500, 5,000 or 50,000 affected, Apple knows based on manufacturing records. If a part that shouldn’t fail in 20 years is failing in a month or two, that’s a problem. A repair program instituted as soon as the issue is identified is the exact _opposite_ of frightening, whether at six days, six weeks or six months.