Defining "lobbyist" down

Speaking of Iran, Jeffrey Goldberg, already in a ditch over his comments about Trita Parsi, keeps on digging.

On the larger question of whether Trita Parsi functions as a lobbyist for the Iranian regime, based on what I know, I'd have to say yes: He has argued consistently against any sanctions against Iran, and an end to sanctions is obviously what the Iranian regime wants. So he is working on behalf of a stated interest of the Iranian government.

To illustrate how bad this argument is, let's consider another example: Jeffrey Goldberg is on the record as opposing an Israeli attack on Iran. The Iranian government also (presumably) does not want Israel to attack Iran. Does that mean Goldberg is "working on behalf of a stated interest of the Iranian government"?

Parsi has argued against sanctions, in part, because he thinks they would strengthen the regime's grip on power. It's hard to see how that makes him a lobbyist for Khamenei.