The section doesn't really answer the actual question. It's cheaper, good enough, replacement parts are cheap, and I understand that argument; I myself use alternatively some kind of very old Thinkpad (that I don't remember the specs of), a 2011 Macbook Air, or a recent Macbook M1 and for what I do with them (little more than running Firefox and ssh) the only difference that matters in practice is their screens.
But replacing a Macbook M1 with a Thinkpad only makes sense if the Thinkpad is better in some aspects, not if it's just good enough. Otherwise you would just keep your somewhat better laptop and replace it later if you ever have to, right?