Streaming Atmos on Netflix vs BluRay

I can’t speak to Atmos, as I have two 5.1 systems in my home.  However I lately was streaming a pair of shows while awaiting the second hand Blue Rays that I had ordered.  When the Blue Raysarrived they were definitely fuller and more immersive than the Netflix stream

Interesting and I'm not surprised, just kinda disappointed. I want streaming to be better.  

So I guess it's like this:

Streaming music = 90% to 105% better than CD depending on a lot.
Streaming movies = 80% picture and sound quality.

I'm pulling those figures from thin air, but it seems that music streaming has come farther and streaming from Vudu, Netflix, etc. is just not there.

I don’t see why music streaming has to be better than CD, if you are using the same DAC and comparing equivalently priced streamer vs CD transport. Both CD and streamers are sending 1s and 0s to a DAC.  And then there is the variable of Internet quality, such as your router, your local bandwidth, etc, not an issue with physical media.
The latter is even more important with video.  With everyone streaming Netflix, the ISP tend to limit the content down the pike, so it shouldn’t surprise you that a Blu Ray will best streaming