I have not seen any reports of counter battery fire.
That launch site should have been destroyed by another ship or the air force.
Immediately.
It may have been, remember the press only reports bad news. Also it may have been obvious that the site was abandoned. A couple of spent missile tubes might not have been worth risking air assets. Although I probably would have flattened it just out of spite.
That's why this seems so unusual. The Israelis have air superiority. I'm thinking drone here...That ship would have a massive hole if successfully hit by a C-802.