Can you imagine the noise today, if Iran had obliterated the Israeli air base?
Iran clearly prepared 2 'narratives' and we see the poor one, that it was all a trial and wasted lots of defence missiles etc.
Israel couldnt go for the nuke sites, directly, because to do so would cause some sort of war. Now Iran has by most definitions started a war, so Israel can go for what it wants. A strike on the nukes, plus the destruction of air defence systems needed to allow this, would be a good firm slap to Iran.
Just a reminder, several times Israel has been attacked by 'all' the arab states, and still came out on top.