On one side the community comments failed to give any clear reason why they felt it important for the community to have control, on the other side the WMF basically asserted dictator control and disregarded that nontechnical issues could matter.
Thinking about this, I think I have a new insight. By any reasonable standard Wikipedia should have failed. By any reasonable standard, an encyclopedia that Anyone Can Edit should have turned into a scribble board. The reason Wikipedia works has little to do with any technical details. The reason Wikipedia works is primarily sociological. If you look on any other website, people on opposite sides of significant social issues inevitably descend into endless flamewars. On Wikipedia we (mostly) avoid that. You can't achieve that by technical means, that is a purely social phenomena. We have found a way to get people to engage in collaborative work and consensus seeking.
On Wiki it is trivially easy to engage in all sorts of malicious behavior editing other people's comments. However it is extraordinarily rare for this to become a problem. There is a strong social taboo against editing anyone else's comment in any way that might be perceived as deceptive or malicious. A newbie might be shocked to discover that they have the power to edit other people's comments - but that shock is going to come with the realization that maybe it would be a bad idea to do that. It's going to make them stop and think about the power they have, and that they need to exorcize some restraint in their own behavior. It teaches people that they are expected to respect other people's comments, and maybe it helps teach them to apply more respect to the people making those comments. The fact that we can edit other people's comments sends a powerful message that we're here collaborating, that we don't engage in that sort of behavior. In the rare case that someone does abuse the power to edit other people's comments, that person gets a strong social message that that sort of behavior is Not Acceptable. Either that person gets the message and learns to collaborate (a good thing), or that person repeats the behavior and we expel them from the community. The fact that people can so easily abuse editing other's comments makes it a GREAT red flag. It's a cheap easy way to identify and expel those who are unable to collaborate productively (a good thing).