Are you suggesting the US intelligence services are negligent in this instance? The US launched an unprovoked attack last year to try and force regime change, they look for all the world like they're about to do the same thing again this year. If they didn't have a hand in the protests, that seems like a stunning failure on the part of the US State Department to support their own policies. It'd be a lot cheaper and far less risky than the current military buildup.

Unless I suppose your interpretation of the purge of USAID, etc, by the Trump administration house-clearing a bunch of people because they failed to position assets in Iran. That'd be evidence in favour of them missing the boat on the Iran protests, I suppose. But even then, they've had a few months to get their act together and at least try something.