For context:

Yeah, we can totally trust a bunch of hateful gusano sellouts to bring glorious liberal parliamentary democracy to Iran. Them pissing all over the Constitutional Revolution’s legacy and thinking some glorified warlord and his spawn have a God-given right to override democratic decision-making, via the only representative avenue the filthy common folk had to express themselves, is entirely incidental (trust them also to bring up the fact that Mossadegh eventually dissolved the Majlis without a hint of irony).
Not to say Mossadegh did everything right (he trusted the US not to screw him over, after all) but to these parasites trying to smear him, his unforgivable crime was attempting to run an actual liberal democratic government and asserting Iran’s sovereignty over its own resources, like a certain other country the empire is in the process of besieging. Also Mossadegh becoming more well-known figure throws a wrench into the image of the Pahlavi family being glorified as national modernizers planting the seeds of “European-style” democracy.
I’ve seen some lib Westoids parrot this and it makes complete sense. It absolves them of the responsibility for helping strangle a fledgling liberal democracy in its cradle and supporting the modern day ideological descendants of its butchers. It also helps them sidestep the fact that the legitimacy of the Iranian government is rooted in their perceived liberal nationalism and anti-imperialism just as much as it is in the Islamic faith. Makes it easy to swallow the slop that the Mullahs and their IRGC enforcers are insane fanatics who must be prevented from having WMDs (which definitely exist) or any real military capabilities if not immediately toppled at all costs.
Appointed by the very same Shah they love so much, no less.
Two things:
Either they indirectly admit the Shah was a fool for appointing a "traitor" (as they call him), showing his poor judge of character and lack of ability to rule
or they admit the Shah had no choice but to appoint Mossadegh owing to his massive popularity (through the National Front)
Most will avoid, but I've interacted with a couple of them who admit #2, but also admit that they think working class Iranians, then and now, are dumb plebs who will follow any "demagogue" and need the strong hand of their preferred autocrat to get them to achieve "greatness".
It is fascinating how consistently liberals talk like this when their politics are proven unpopular.