Re: Optimism
These satelites aren't going to bother visible astronomy
Space is, as the prophet said, big.
So the solid angle blocked by one of these satelites is like a midge flying across your telescope a mile away. They are in such a low orbit they are only going to be lit up by the sun very close to sunrise/set
They are more of an annoyance to radio astronomer, blanketing the whole sky in Ku and cat pictures - but realistically doing radio astronomy from Earth in any band useful for mobile data is too late