The max steering angles of the phased arrays are much higher, the diameter is at least 10x what you say. And for the last few years, lasercoms can route traffic inside the constellation so a given sat doesn't need to be within sight of a ground station.

>The max steering angles of the phased arrays are much higher

You can't steer the antenna back and forth for every exchange between station and customer. What the steering may get you is increasing the coverage of an area currently underserved by the constellation, and maybe a slight increase in diameter of ground covered due to the geometry, at the cost of lower signal strength.

>And for the last few years, lasercoms can route traffic inside the constellation so a given sat doesn't need to be within sight of a ground station.

Did they finally implement satellite-to-satellite links? Fine, if that actually works, they can indeed extend the range much further. I don't know if I believe it, though.