So let's see where we currently are:
Gen 1 - flat out unusable, feedback far too vague.
Gen 2a - felt ok to type on, probably the nadir of reliability (sticking keys).
Gen 2b - modest improvement on 2a.
Gen 3 - seems to have possibly reduced instances of sticking/ jammed keys, but repeating letters is possibly even worse.
What could they do?
Gen 4 - increased 1.0mm of travel to improve reliability and feel? I genuinely don't think it's anything to do with the butterfly design inherently, it's the fact the keys barely move so the tolerances on what counts as a keystroke aren't real-world proof.
Magic Keyboard mechanism - also has relatively little key travel, but enough it feels nicer to type on, and no reliability issues.
Haptic touchscreen keyboard - y'know, if they want to make things even worse for themselves.
Revert to the old keyboard - Hello, Cupertino bakery, I'd like to place an order for 1,484* humble pies to 1 Apple park way.
Nothing - more difficult with the recent acknowledgement, but they could double down on the 'vast majority' not experiencing any problems line, in a press release riddled with ee's and missing letters.
* one for every day since the KB was introduced in 2015, if you were wondering
