However I will continue to just read your arguement since your more then correct on why they haven't elected to attempt it with the new aircraft they have.
Well the thing there Red is they do have plans to upgrade all (or the majority of) the other 15s and 16s to I versions , but they havn't managed to get the time or the money to do so due to other events , same with purchasing new tankers and buying enough bunker busters .
All the while Iran has been spending like a politician at election time on new equipment and upgrades .(just like some of the other countries involved who now have a very different military than they did at the time of the Iraq raid) .

It really at the moment would be a case of putting all your eggs on one basket with a dodgy handle and a badly patched hole and I cannot for the life of me see Israel doing anything apart from leaving their eggs in the coop .