While I agree with something of an abstraction of what they're saying, when I read things like this, it's hard for me to see anything but a person that wants to hijack the tyranny for themselves.
The Jo Freeman article was written in retrospect to her own experiences with the feminist movement in the 1960s - she has another article - "Trashing: The Dark Side of Sisterhood" - that I think illustrates very well that in spite of her belief of the movement, she had been hurt by its methodology (which was by no means exclusive to the feminist movement, as we see here) and not to mention was in no position to be able to "take power." She wrote these things in hope that the movement could course-correct, not out of some calculated Machiavellian strategy.
I think perhaps I could have been more perspicuous in my post, as both replies to my original post seem to focus on specifics when I'm talking about the more general case. In that regard, I'm not talking specifically about flat hierarchies, feminism or these individuals (though certainly it is true in some cases).
I've seen / experienced several train-wrecks caused by flat / self-organizing teams (see my sibling comment). In those catastrophes, I would have been glad for almost anybody to take on the role of team leader / manager.
So I'd be reluctant to assume the argument for structure is motived by personal ambition.
I've been in the opposite situation once and it turns out upper management wasn't really fine with a self directed team without a designated manager / leader.
Granted they wanted to introduce changes and needed someone to enforce that. We ended up sort of pushing in unison for the person who we thought would be the best and he did a fine job managing that team.
There's something to be said for containing your problems in a nice public position so their overreaches can be easily seen and warned about, and their tyranny can be limited in scope.
It's like a cage rat trap with some peanut butter for bait. Once inside, you still have to deal with rat feces, but over a much smaller and more manageable area. On the other side, the rat is always visible now...