it didn't miss, 3 missiles impacted the target at different areas, Israel's video said they all hit important parts of the facility
after the first 3 days the Iranian missile salvos were quite small per day (10-20).
- day 1: 200 missiles
- day 2: 75 missiles
- day 3: 94 missiles
- day 4: 20-22 missiles
- day 5: 47 missiles
- day 6: 1 missile
average of days 1-3 = 123 missiles
average of days 4-6 = 23 missiles
and the average fell more after day 6
I don't really think there is such a thing as 'luck', either they intercept it or not. but 10 old missiles fired at once means their Pk per missile is lower than against those same 10 missiles fired separately, sure. I just don't call that 'luck'.