The issue is for long exposure capture needed for quality astronomy. In that context any reflection from the sun on a satellite can trash any shot in an instant. SpaceX has tried to reduce the reflectivity of the Starlink sats but they still are a factor. Supposedly it was actually really bad at first.
Does that actually affect real science, or is it just a matter of astophotographers wanting a nice picture without streaks? It's not like long exposures have to be done on film these days. Anomalous light sources can be removed in software.
I think if this is affecting basic science it's a real concern, but if it's just a matter of making long exposures of galaxies and nebulas less pretty then I have a hard time being overly concerned about it.
