I think you are missing the point of legal vs societal obligations and your analogy is equally bad. Minio's sold you this free light bulb and they also freely offered the service to upgrade it to the newest version every time a new lightbulb was released. There are many light bulb brands out there, some paid, some free, most of them also offer the service to upgrade the lightbulb automatically, even the free ones.

Then Minio decided to disable the feature to upgrade the lightbulb automatically, the code to update it is still there, they just don't want to do it anymore. Conveniently there is a Minio+ enterprise plan that has this feature. But hey! they tell you that you can easily set up your own server to update your lightbulb automatically. And most enterprise clients or people who have Minio lightbulbs in their office will do that.

But for single enthusiasts who don't have a server because they are just running a Minio lightbulb in their shed it's a bad situation, because if they knew this from the beginning they would have gone with another free lightbulb that updated automatically.

In short: Minio has the legal right to do whatever they want, people using minio have the right to be pissed. It's an all around bad publicity stunt and if I was a Minio investor I would really wonder why they are trying to piss off their loyal user base for a quick buck.