There are unions like SAG and SMA precisely because this kind of stuff happened all the time in Hollywood (along with a ton of other abuses). It happened because the workers banded together to say, "No, you won't get to work with any of us if you don't treat all of us fairly". If Netflix doesn't want to find itself in the same situation, it's precisely where they need to address their complaints.
Clearly Netflix can say in the contract which business practices they are ok with.
If Netflix buys a laptop from Apple and Apple does something wrong, you don't blame Netflix for it, you blame Apple.
The laptop is effectively a commodity, and any injustice Apple commits is amortized over many million laptop owners who tacitly but minorly endorsed that injustice. Netflix buying a show feels like a much more intimate relationship where much more of the responsibility lies with Netflix as the only buyer of the product.
Show purchases don't go past the board. They don't even always go past the CEO.
It's really more akin to buying enterprise software. So sure, change the metaphor to Oracle database. You don't complain about Oracle's customers where Oracle does something bad.
When it's something we care about, we definitely blame the customers too.