I don't think Starlink is commercially viable in the long run unless Starship starts flying regularly. With Starship operational, maintaining a constellation

I don't think Starlink is commercially viable in the long run unless Starship starts flying regularly. With Starship operational, maintaining a constellation of tens of thousands of satellites should be 'easy'. But with only F9, they have to launch at an insane pace just to keep a few thousand satellites up there. They're presently at 3.5k satellites of their desired 42k. In fact I think this and similar missions are the true raison d'etre of Starship. Mars colonization isn't going to happen, it's a huge joke. Nobody will have Mars colony infrastructure ready to ship for decades at least, SpaceX is barely even pretending to invest in this. Mars colonization customers just don't exist and couldn't justify the money SpaceX is spending to develop Starship. Therefore, Starship exists to launch massive satellite constellations, particularly Starlink. And it wouldn't exist at all if SpaceX thought they could pull it off with just F9. F9 is a stopgap, to buy them time for Starship's development.