When people are taking your latest model into your store to figure out wtf is going wrong with it, in much greater numbers than the previous model, you've created a broken design.

I have seen absolutely filthy "old" MBP keyboards that worked just fine. It's a laptop, I should be able to use it without having to treat it like a delicate snowflake. Whatever happened to building quality hardware?

We voted with our money that we didn't give a damn about quality hardware or software.

Ehhh, we voted with our money that we trusted Apple. Their hardware design has been quality until the new keyboard.

This ignores whether you want more ports or faster processors, of course.

IMHO the hardware has been shit since the AMD disaster.

if a keyboard requires compressed air cleaning to function, that sounds like a design defect to me.

I've used PC keyboards for ~25 years now and I've never had one that would break if not treated ...