QuickRick :
These are the "BEST"? Hells bells, my old ASRock Z77 extreme9 board had 7 PCIe slots and 5 of 'em were 3.0 x 16. And I use them! What could I do with a "Best" MoBo that only has 1 or 2 or even 3 slots??? Not very good - certainly NOT BEST!
Everything you said is irrelevant for the following reasons:
1.) We've already removed Z77 boards from this series due to its end-of-life status. Z170 is coming down soon for the same reason.
2.) "Best Of" is an award showcase, and ASRock never sent us a review sample of the board you described so it was never even reviewed, let alone awarded.
3.) Not every form factor supports three double-slot graphics cards
4.) Your report isn't completely honest, since only four of those slots can be active at a time, and only in x8. The fifth slot is only active when the other four aren't being used. You're catching a break here because you got that directly from ASRock marketing.
5.) We have boards on the second page with even higher-bandwidth slot configurations, such as x8/x8/x16/x8, and those don't need a PCIe hub to make that claim.
But given your ability to overemphasize your product, I'm going to guess you'd make a pretty good salesman.