Sometimes a bizarre situation warrants a bizarre strategy. Satellites will sometimes break, and even Starlink itself as a business can go under. And, as the OP

Sometimes a bizarre situation warrants a bizarre strategy. Satellites will sometimes break, and even Starlink itself as a business can go under. And, as the OP describes, they become obsolete by their nature as telecom hardware. It is severely expensive to remove a satellite from orbit. But a low altitude constellation is self cleaning. Starlink can go under entirely and the entire constellation will still come down in a reasonable timeframe.