I guess you could say it doesn't, but it tells a lot of it, and thus far in the Klopp era, it's told enough.
This "you can't know a player without seeing him" is a complete misunderstanding of why you use data. The whole premise is that you can't be everywhere. Using the example of a player that you are more familiar with, you can identify similar players with whom you are less familiar, and investigate further.
This is what, one way or another, to one level of detail or another, pretty much every club does. If they didn't, they'd be investigating everyone in the world, and that's impossible. So either they do it this way, or they do it by some enforced constraint -- for example, a small club might have proximity enforced on them, because they don't have the money to travel for scouting. Liverpool obviously doesn't.
I could explain a lot more, but your tone and invective suggests you're not of a mind to learn if I did.