they are saying collapsing stars isn't what he uses because it pulls things in not stop themRadahn literally uses Collapsing Stars against you, and The Tarnished can also learn that spell. Which he can also use against enemies. It's the one he used to stop the movement of the stars. Not combat applicable my glorious golden ass.
though as you can see in his fight he can literally do whatever he wants with gravity, including push his horse underground to safety and pull it back up to help him
they also argued against even that though
