So, at this point this is probably legit, so I thought I'd share my thoughts.
Lots of Bethesda fanboys have been dismissing this as blatant opportunism, claiming that Dion doesn't actually care about the trailer being "repugnant". My response to this is: So what?
Bethesda have been no strangers to opportunism. They acquired the Fallout license because they could, with no regard to the fact that the people who worked on and loved the series(Troika) also wanted it. They showed clearly they care more about a profitable series than they do about the wishes of artists or quality of games. They outright channelled all there review-copies in to super positive fanboys in hopes that all the attention given to them pre-release is positive. They got in to legal dispute with Mojang over the word "Scrolls" for no good reason other than showing that they are powerful enough to control a single word.
Bethesda's entire history post-morrowind can basically be summed up as "Fuck you, we don't care about principle, we are doing this because we can". Bethesda are deep, deep in the game of using everything in there power to get what they want regardless of principle, yet somehow Bethesda fanboys find it outrageous when someone does the same to them.