Both sides of the media definitely have their share of misinformation. The first reports I saw on CNN claimed there was no significant damage and no casualties, but those stories have since disappeared. No retraction, just poof, they're gone.
I did come across an Israeli explanation stating that even after missiles are intercepted, you might still see them falling. That makes sense to me, though I’m no expert. Plus, if 80% of the 200 or 500 missiles, as reported by foreign media, actually got through, wouldn’t we be seeing reports of massive casualties?
I believe Israel wanted to preserve the perception of having an impenetrable defense system and tried to manage the media to support that narrative. Then they realized they couldn’t fully control the situation. While I do think more Iranian missiles got through than they’re willing to admit, I don’t believe it was as high as 80%.
80-90%. Some of the missiles were hypersonic.
Israel hit by hypersonic missiles – IranThe Revolutionary Guard claims to have used cutting-edge Fattah-2 rockets to bypass Israeli air defenses
Iran used hypersonic missiles for the first time during its strikes on Israel on Tuesday, the Islamic Revolutionary Guard Corps (IRGC) has announced.
Iran launched several salvos of missiles in what the IRGC called a response to the recent Israeli killings of the heads of Hamas and Hezbollah, as well as an Iranian general who was in Lebanon.
Fattah-2 hypersonic missiles were used in the attack to bypass Israeli radars, Iranian media reported on Tuesday evening, citing the IRGC.
The Guard claimed that 80-90% of the missiles used in ‘Operation Honest Promise 2’ struck their targets, among which were the Tel Nof air base near Tel Aviv and the Netsarim area near Gaza, where they said “a large number of Israeli tanks” were destroyed.Iran also claimed to have destroyed a number of Israeli F-35 fighters at the Nevatim air base, located halfway between Beersheba and the Dead Sea.
https://www.rt.com/news/605075-iran-israel-hypersonic-missiles/