HUBs testing section also brings up another interesting debate. They tested a worst case scenario in single player campaign. Nothing wrong with that per se, the problem is it's not reflective of 99% of the game, or multiplayer. Typically I'd say test a sequence that is largely representative of the game, rather than a worst case or best case scenario.
Ultimately though, I have no problem with the area they tested. They have to pick somewhere and all sites picked slightly different areas. It only raised a red flag for so many people as the results were totally different to everyone else's. As it turned out, this was mostly down to disabling SAM/ReBar and that is my main gripe with HUB and TPU.
By disabling SAM, you are hurting AMD performance in every graphics card and game benchmark they run. Between both sites, they run a lot of benchmarks. That means every single result from these outlets is inaccurate, that's a problem.
I know Nvidia choose which games and apps to enable/disable Rebar, so there should be no issue in enabling this feature for both. If it really does hurt performance in a particular title for a particular vendor, it would make sense to disable it for that game/benchmark for either vendor.
Due to driver updates, SAM does not hurt performance anymore. Furthermore, SAM can be toggled on and off via Radeon Software. I believe Nvidia offer similar functionality based on user feedback here. So, no logical reason to keep SAM/ReBar off - unless it negatively impacts performance or causes other issues.