Actually I'd suggest people don't just accept all feedback
If you read the whole para :)
What I suggest: listen to everyone and everything, but internally filter what’s actionable versus what should be addressed. More importantly, after receiving feedback, thank the provider regardless of whether they were right or wrong. Then share recent instances where you made corrections based on their suggestions.
Pardon my ignorance but why does it matter that you're using RPC/graphQL or REST based service, isn't the underlying protocol still HTTP? So this spec would still be applicable, right?