Because there are another threads where we post Nielsen numbers
James Gunn did not say Samba was the only metric, he said it's a third party option to see HOW they are doing more or less, he talks as well how streaming services keep their numbers very close to themselves and how it's hard to tell.
Let alone all the metrics are flawed when most streaming service like Netflix count a couple of minutes as a view.
Again NO ONE is saying Samba is the one measure, if you have other numbers the post yourself the other numbers, it gives the context of the performance, not the full view, you literally said all that to end saying the same I already pointed out.