i'm not a PC gamer savy guy so: does this mean scorpio is close to the top of the line?
Not really, but still pretty damn good. Top line on PC is approaching 11.3TF from nvidia, but even that is a poor metric, as if you do a straight comparison of real world game performance between AMD and Nvidia, nvidia is always far superior.
It's super nitpicky though - you will NEVER get that kind of performance advantage at a reasonable price point when trying to create a console.
Chances are Scorpio will have a reasonable price. Even at $499, assuming GTX 1070 level performance, it's excellent value for money. I've said this with PS4 Pro (which needs a price drop now) but at launch and even at "fauxK checkboarding Vaseline" (hyperbole intended), it was still excellent value for money at launch and quality.
The only stupid thing with PS4 Pro (and just consoles in general) is bullshit marketing. Now MS will talk about "true 4K" which they should because it's actually true, while we have to call PS4 Pro's various resolutions "4K" too, just as we have done with 900P and other "supercharged PC" wonders. Just put out the facts and let everyone have a good ass time already. Marketing is like politics where your just sat there reading between the lines, so it's good to see MS just drop the specs and details (although likely not giving room for DF to go very far in terms of criticism; as with all exclusive product journalism).