The noise looks very predictable, should be super simple to filter out
Furthermore, astronomy is just entering a paradigm where the entire sky can be imaged multiple times per night with great optical depth. Transients are going to be the next frontier, and that is precisely what these constellations will create. A few lost satellites with improperly-documented orbits can fake optical transients.
Furthermore, radio astronomers have moved to the outback of Australia to get away from rare radio transients. A zoo of satellites is precisely something they don't need.