No we're talking about every website having to make this work because the default is to not require loading the resources or else be blamed for not being compli

No we're talking about every website having to make this work because the default is to not require loading the resources or else be blamed for not being compliant with a spec forced on them by Google through their browser monopoly. Google should need some really good evidence to support this. What points do you disagree with, and why? Where are the metrics? If it's better performing than just priorities and flow control then by how much, and how do you justify breaking sites to achieve that margin?