Comment by QuiEgo

It's also reasonable from a business point of view to say "we can't justify the investment to optimize our software in the current environment." I assume this is what's happening - people are trying to get their products in customers hands as quickly as possible, and everything else is secondary once it's "good enough." I suspect it's less about developers and more about business needs.

Perhaps the math will change if the hardware market stagnates and people are keeping computers and phones for 10 years. Perhaps it will even become a product differentiator again. Perhaps I'm delusional :).