Unfortunately, what we believe it should be, is not always the same as it is. We are asking Netflix to deliver all possible resolutions and it's up to Netflix what to, actually, send us.
"Other tools" is not convincing. Try "Ctrl+Shift+Alt+D" while watching a title, that you believe to have higher resolution available, in a browser and tell us if you really are getting higher resolution than AnyStream is offering. We will then investigate that.