if there are 10+ exits, even if Israel bombs them all, Iran can excavate a few during the night before Israel can spot it and react surely
and what about the magazine launch system? that could work well here.
in any event, it is encouraging that Israel cannot reach the missiles underneath, and most of the bases are still operational (always have to assume some will be impacted in war). also, imagine if Mossad commandos had gone in and disabled them, or sabotaged them (some fake Zio news was saying the missiles were blowing up after launch)! luckily none of that is the case.