The message was added after they were called out right?
A company can increase performance of the original device and not mention it that’s up to them as you’re getting more than you paid for now. Lowering the original performance without mentioning it I think should be mentioned as now you’re getting less than you originally paid for regardless if it’s perceptible to the user or not just a bit of transparency.
I definitely agree that the device just shutting off at 30% battery is a super shitty experience and I’m glad they did attempt to resolve that don’t get me wrong. I just personally think they could have said hey we’re doing this to improve your experience that’s it.