You’re not wrong, but arguments like this ignore the point. For many authors and maintainers, ‘free software’ and ‘open source’ as traditionally defined result in unsustainable outcomes. The original article cites articles explaining several such issues.

Many people in the software industry are looking for new licensing models that take these systemic issues into account. It’s the ecosystem evolving to address current conditions. This should be expected and welcomed, but instead the idea is consistently written off by folks who would rather live by the old rules. The commons continues to suffer for it.