It is somewhat ludicrous to think that a missile fired by Hezbullpucky is somehow devoid of Iranian fingerprints; whereas a missile fired by troop advisors to Hezbullcrapeaters shows complete Iranian complicity. Whether the source of an attack is Al Qaeda, Hamas, Hezbollah or some other group is of little consequence IMHO. The Iranians and Syrians benefit from the fact that we in the west differentiate between one terrorist group and another, because it is a smokescreen that hides the state-sponsored aspect of it all.
The anti-war crowd can bluster NO CONNECTION BETWEEN COUNTRY X AND TERRORIST GROUP Y. It's ridiculous. Does anyone realistically think these groups could exist in the Middle East -- where they cut off your hands for stealing -- without government encouragement, recruitment, complicity and financing?
That said, at least the direct involvement of Iranian forces in the conflict elevates the status to a level in which the west has a strategic advantage.
We are very good at blowing up a visible enemy.