Except that "a limited number being a problem" is a meaningless phrase without stating what that limit is, beyond listing lots of MacBook models. The limit could well be "all units of this type that we ever built" and their statement would still be factually correct. No grade for critical analysis I'm afraid..
Previous Apple recall and extended warranty actions have usually been accompanied with a serial-number checker that tells the customer whether their product qualifies. Tellingly, there's no such detail in this one - it just lists basically every model that has featured this keyboard design (see for yourself: https://www.apple.com/support/keyboard-service-program-for-macbook-and-macbook-pro/ )
It's a flawed design, not a manufacturing issue. They effected a remedial solution with the "v2" keyboards, but can't do much more as they've painted themselves into a corner by the rest of the design requiring such shallow key travel for the device to close properly, so we won't see a better design until they redo the whole casework.
Biting the hand that feeds IT
