That’s the literal truth, but the subtlety behind it was that CPU spikes combined with low voltage batteries were causing phones to shut off. Apple’s slowing down the phone down was nominally because customers prefer slightly slower phones to phones that shut off unexpectedly. Should they have announced this as a feature and had a toggle switch to allow users that preferred the option to disable it? Of course. But I don’t necessarily think they did the wrong thing.

The devices were slowed because aging batteries creates unstable performance. It wasn't done to intentionally make them obsolete.

You say that like what they were doing was a bad thing. It was a feature.