No. I actually know how it works in the real world, having walked in the shoes of practically everyone that was involved in that campaign, one way or another, both on the grassroots side, and the "professional" side.
Chances are, those "spontaneous activists who were frustrated by the lack of response from the Angle campaign" were the complainers who were always waiting around for the campaign to do something for them, because they didn't have the vision or the drive to do it themselves.
That is horsehockey. I took over parts of the logistics on my own accord during the primary when the guy they hired fell flat (and was let go after the primary). But in a well-run campaign, you find things for volunteers to do because you have structured things where there are lots of productive tasks to be done, and you don't want your volunteers striking out on their own - everything I did was at the approval of the campaign managers, I NEVER just did stuff on my own as to possibly do something that contradicted with the direction and message of the campaign.