It was not `if (old phone)` it was `if (worn out battery on specific phones with a problem)`, the specific models with the problem happened to be slightly older. They worked fine with new batteries (and did not throttle), including replacements.

Apple obviously was not intending to harm users here (I don't know the Samsung case well enough to comment), they absolutely messed up the messaging by not making a notice about their work-around front-and-center, but I disagree with the precedent that this fine is setting.