There were reports that air defense was active over Kyiv, if anything was hit we would've heard about it by now. Patriots only recently went in country for what reason would they be at the front? The explosion at Ammo dump happened almost at the same time the large amount of bombers were taking off so it wasn't air launched cruise missiles to begin with. I don't think that saying Western AA was effective against strikes on cities were inaccurate.Your original point was that western air defence systems worked this time. What is the job of air defence, it is to protect military assests from enemy strikes, so when the target of the strike is up in flames you consider the air defence to have achieved it's objectives? Well you can believe in what ever you want to believe in.
And since when was air raid sirens a measure of how successful a strike is? If there were no air raid sirens in say Lviv then that just means Lviv was not targeted with any strike. The target was in the Dnipropetrovsk oblast.
By your logic you can move the goal post anywhere post attack to make anything a success, we already know Russia has the capability to use ballistic missiles anywhere and there's little Ukraine can do about it, but despite that not much is coming out that much in the rear is being hit this time.