This is the same defense I see repeated for Amazon and Google, and they're two of the biggest destroyers.
Honestly OSI and their definition of "open" has been a scourge. Google and Amazon encourage this thinking because it benefits them.
You can have non-commercial "fair source" for customers that prevents vultures from stealing your hard work. That's ethical, yet it gets dunked on by OSI purists.
You can demand that profiteers be required to open source their entire stack. But these licenses are discouraged and underutilized.
But when this keeps keeps happening again and again and continues to be met with victims blaming -- I'm disgusted by the open source community's failure to be pragmatic and sustainable.
You have to give away everything or you're the bad guy. And so what did they take and take and never give themselves?
Open source has a problem.