With respect, I think
your argument is fallacious. The Oilers haven't rejected "information", they have apparently kicked Dellow to the curb, while continuing to retain the services of Dan Haight of Darkhorse Analytics.
How does this equate to an "argument against the numbers". After 40 games of Dellow's analysis, perhaps the Oilers came to the conclusion that he didn't know what he was talking about.
So, the Pearson's correlation coefficient between hiring a blogger and getting fired = 1.0.
My sense of it is there's a bit of a "poseur problem" in the "analytics community". People who are good at self-promotion don't necessarily have much substance to them, and in a technical field like analytics it is difficult to continue passing yourself off as something you're not.
Hell, there are people practicing medicine who have never been to university, but they all get exposed eventually.
Isn't that just the way of things?