I am a trained electrical engineer and while I currently do not do modeling as such I am trained extensively in the methods of doing so.
They are currently in the process of determining which variables are causative and as such are not a making for a good diagnostic atm; the way they are going about is correct nonetheless.
Your confirmation bias is adorable though.
No offense but this argument is goofy in every way.
I am a fan of metrics but the way to test this metric is clearly is to see if they were correct.
If you, as an electrician tried "guessing" like these metrics you'd have been shocked to death long ago.
In that field (my Dad is an electrical engineer) people trust what is thoroughly proven to work, not metrics.
This is an attempt at an unbiased analysis but the data says they have been wholly inaccurate in their results.
The best they can do is label it a college weighted metric with no basis on NFL results.