Your argument that teams don't use mocks to base decisions isn't the point, ( of course they do not care or use mocks , that's silly) also data analytics does not look into the how or quality of assessments of those making invites for combines etc, it's independent of that. Like it does not factor if a team down 3 zero in a best of 7 series has lost each game by just 1 point . ( that's not the point at all)
those facts 1 and 2 are mentioned are independent of the how or whatever other factors. and BTW it's not saying it's impossible, it's just saying that if one beats the odds he's an outliner. . nothing else
I'm not actually arguing with anyone who wants to make a bold prediction beating the odds. you're totally entitled to that.
now if you're arguing the odds are incorrect , that's not possible because they are events that already happened in history as fact.
There is nothing obscure or meaningless in the fact that no one who has been drafted was not invited to both the combine or elite camp , it's a very meaningful indicator and statistical historical fact.