Really? One example: When states threatened sales tax (before CA), they cut off retailers in those states.
They can and they have given people short shrift when it's in their business interest. To be fair, that just means they know how to increase sales by selecting who gets thrown to the lions, which is necessary in any business.
I think most people making platform selections are mainly focused on AWS. I'm sure they pay some attention now to Amazon proper, but their affiliate programs were a peripheral thing, and