The model lifetime is too short. You can't get any idea of medium term reliability (as a proxy for long term reliability) until when the phones are discontinued.
https://www.theverge.com/2021/1/25/22248408/apple-class-acti...
The specific thing they were sued over was "we slowed down your phone when the battery got old, because the alternative was it crashing, and we didn't tell you we were doing it". Not explaining it was bad, but they've since fixed that, and the underlying technical thing they did seems reasonable and, to the point of this discussion, actually prolonged the usable life of the phone.
Free repair if that happens is nice, but also not that helpful unless being out a phone for a week is fine, and losing your on device data is fine.