You should not shame people who try to build something sustainable, but instead try to improve the system that makes altruistic work difficult.
If maintainer believes the hard choice of Open Source is not for them it is fine. Go ahead write proprietary software instead
Being Buddhist Monk is hard too but you perhaps would find it silly someone wanting to call himself one but not wanting to follow the rules which come with definition ?
I think it is fair to talk about this and how it can maybe be done better.
I agree, though it's evident that the discussion is stained by the tone of this article.
They aren't approaching this topic with some respect and understanding, while being fully aware that these license changes are aimed at large companies which keep taking, but do not support the open source community.
[0] https://thenewstack.io/contributes-linux-kernel/ (Kind of old but I don't think it has changed much.)