Hi Ken,
Hope you're well.
I'm not entirely sure what you mean by "Valid measurement"?
That Test video simply shows the Bitrate and Res that you are achieving when using Netflix.
As you know, they claim 1080p (soon to be 4k) and 5.1 Audio... and yet even on your 50Mbps connection, they still only deliver 3Mbps.
And while you may find the results to be acceptable (which is fine), it's quite simply a long way short of the 20-40Mbps that you get on 1080p Bluray discs... and also short of the 8-11Mbps that you get from Satellite and some Cable systems.
I know Netflix focus on saying that Resolution (720p and 1080p) is "HD"... but to me that is akin to iTunes et al saying that the music they sell is '16/44' (which is true), and using that one simple spec to imply that the music they sell is equivalent to CD.
I take issue with iTunes and other MP3 Sites when they directly or indirectly claim "CD Quality Downloads", but luckily most people here are now aware as to what these sites offer and can still make 'informed' buying decisions, as they know that '16/44' does not mean 'CD'.
Similarly with Netflix, they sometime claim 'HD Quality' and "Bluray Quality' and it simply isn't true. It's important to understand that 720p and 1080p streaming are just one small aspect of "HD Video'.
You're fortunate to be using an Oppo for streaming, as that appears to be one of the better devices for Netlfix audio and video quality.
I think that little Test video is useful to show people what Netflix are actually delivering, so that they can then make informed buying decisions... or to possibly search out better performing streaming solutions such as Vudu.
Not sure if that helps?