That's certainly true, but in a typical web application it's quite common that the specific behaviour of a given database isn't interesting enough to warrant testing so rigorously. In those cases, integrating with the database is perhaps a less sensible choice economically.
The lower the orbit, the more quickly objects de-orbit. This is especially true of the lowest LEO orbits that Starlink sits in, where atmospheric drag also enters the picture. Worst case scenario, a totally dead satellite will deorbit on its own in a couple of years and they can very easily suicide if required to avoid catastrophe.
