[MereInterest]

Which is entirely by design, when they make batteries not be swappable. If your goal is to make a good product, it makes perfect sense to have a long update window, just as it makes perfect sense to offer replacement batteries.

[Chestofdraw]

If your goal is to make a good product then introducing points of failure around its power supply probably isn't a great idea.

[MereInterest]

The battery itself is a far bigger point of failure than the connection to the battery. If your goal is to make a good product, it is worth introducing a small failure mode in order to remove a larger one. Since most phones no longer have replaceable batteries, they are hosed once the battery no longer holds a charge.