This is kinda funny, because I am arguing both sides a bit here in my reply to different comments, mostly because I am not actually sure what my final belief on this topic is.
But maybe we shouldn’t fund open source development via companies whose entire revenue is selling support for that product? I feel like my favorite OSS projects are ones that are created and maintained by developers working for companies whose business model is based on something entirely separate from the OSS project, but who need the OSS project to support that business. They, and many other companies who have the same need, pay developers to work on the project so they can get what they need from it, but they keep it open source because it isn’t core to their business and being OSS makes it easier and cheaper to maintain.
In this way, there is no conflict of interest between the open source needs and the companies business model.
But maybe we shouldn’t fund open source development via companies whose entire revenue is selling support for that product? I feel like my favorite OSS projects are ones that are created and maintained by developers working for companies whose business model is based on something entirely separate from the OSS project, but who need the OSS project to support that business. They, and many other companies who have the same need, pay developers to work on the project so they can get what they need from it, but they keep it open source because it isn’t core to their business and being OSS makes it easier and cheaper to maintain.
In this way, there is no conflict of interest between the open source needs and the companies business model.