I'm just not sure how to connect this rhetoric to the facts of the source link, where a hobbyist attempted to extend some source-available code to support a new technology, and the CEO of the for-profit company who owns the license said he's not allowed to for business reasons.

You can be and I am sympathetic towards the CEO! I wouldn't accept a PR for cannibalize_my_revenue.txt either. But if we insist on analyzing the issue according to the categories you're describing, it seems undeniable that the CEO is a corporatist, and that he put an unfree license on his repository to stop people from freely modifying or redistributing it.