She not “disprove” the existence of the tragedy of the commons. What she established was that controlling the commons can be done communally rather than through privatization or through government ownership.

Communal management of a resource is still government, though. It just isn’t central government.

The thesis of the tragedy of the commons is that an uncontrolled resource will be abused. The answer is governance at some level, whether individual, collective, or government ownership.

> The "tragedy", if you absolutely need to find one, is only for unrestricted, free-for-all commons, which is obviously a bad idea.

Right. And that’s what people are usually talking about when they say “tragedy of the commons”.