This... "But the big one is... there's not a HUGE backlog of stuff we're trying to put into LEO" ...is way under-reported. Half of what's in orbit is Starlink! But that only supports 1M subscribers, based on the last public set of numbers.
The current constellation is mostly a "bent pipe" network that has no inter-satellite communication. The new satellites that are intended to form a kind of "backbone in orbit," even the "mini" versions, are much larger and heavier and those need an economical working Starship to make financial sense.
Also. Too many inaccuracies in that article to list them all.
But the big one is... there's not a HUGE backlog of stuff we're trying to put into LEO. Right now it's mostly starlink satellites to LEO.