> A chemically aged battery also becomes less capable of delivering peak energy loads, especially in a low state of charge, which may result in a device unexpectedly shutting itself down in some situations.

I think the people in the Silicon Valley need to take a step back and understand that people in the rest of the world don't change phone every year. If a phone become unusable because of its battery (according to them) during the expected lifetime of the device then batteries need to be easily replacable.