The effect of downward-pointing black coatings on LEO satellites is higher spacecraft temperatures, but the cost of those higher temperatures is on spacecraft d

The effect of downward-pointing black coatings on LEO satellites is higher spacecraft temperatures, but the cost of those higher temperatures is on spacecraft design/use, not on IR astronomy. Starlink satellites run screamingly hot even without the dark coatings; if they're a problem for IR telescopes, then that should already be a problem. A few extra degrees shouldn't break the budget.