Skyglow is when you see the horizon light up in the direction of a city, not the light reflecting from a satellite. Look at the photo in your own link.
Let's assume I've read the link and have had discussions with both visual and radio spectrum astronomers and astrophysicists.
Starlink satellites pollute the night sky with both reflected sunlight and intended and unintended radio spectrum noise.
Manmade objects that inject light into an otherwise dark sky fit the category of skyglow, reflected sunlight tends to be sharper and less diffuse than atmospherically scattered ground lighting .. it's all extraneous human caused pollution from the PoV of telescopes.
Starlink satellites pollute the night sky with both reflected sunlight and intended and unintended radio spectrum noise.
Manmade objects that inject light into an otherwise dark sky fit the category of skyglow, reflected sunlight tends to be sharper and less diffuse than atmospherically scattered ground lighting .. it's all extraneous human caused pollution from the PoV of telescopes.