The random shutdowns sound like a technical problem with the phone. The correct solution is for Apple to fix it. It doesn't happen on any other flagship phone.

The random shutdowns sound like a technical problem with the phone. The correct solution is for Apple to fix it. It doesn't happen on any other flagship phone. So you are being disingenuous in listing that as a choice. The real choice is between slowing down the whole phone or the battery lasting a day instead of a day and a half. Or another choice is for Apple to include bigger batteries so that the degraded battery still provides a day and a half of usage.