Netflix encodes and serves a lot of video. So obviously both encode time and low filesizes are important to them. That doesn't change my point that their priorities may be skewed towards lowering filesize moreso than other entities, since they serve more videos per encode.
And yet Netflix is working on SVT-AV1 with Intel, which is one of the fastest AV1 encoders available:
https://medium.com/netflix-techblog/introducing-svt-av1-a-sc...
https://www.reddit.com/r/AV1/comments/bxn2uw/svtav1_encoding...
https://github.com/OpenVisualCloud/SVT-AV1
How does that fit with your narrative?