In this particular case, he does not say anything other than "I won't actively work on supporting proprietary platforms because I don't care about them". Can't

In this particular case, he does not say anything other than "I won't actively work on supporting proprietary platforms because I don't care about them". Can't we just be grateful when people open source their code without asking anything in return and stop criticizing them because they did not release it under our preferred conditions? Do you personally maintain useful open source projects? Can I go there and complain about how you proceed even though I didn't contribute anything at all?