Its astonishing to me that anyone agreed to operate under such an NDA anyway. 17 hours is sufficiently long that you could aquire the game, play it for 2 hours to get a feel for it, 1 hour to record a video, edit for another 2 hours, and then post it with 10 hours left on the embargo.
There was probably an understanding, whether explicit or implicit, that if the game reviewers didn't accept the pre-release copy and 17-hour embargo that they were at risk to be passed over for both future pre-release copies (I bet Far Cry 4 was the game they were baited with) and advertising opportunities.
Which is the big crock when it comes to ethics in gaming journalism: Gaming magazines and websites rely on advertising that is primarily from the very companies people expect them to critique and investigate. Yet many gamers that read reviews are somehow blind to this, despite explicit events. (That is certainly not the only instance of editorial misconduct, just the most obvious and high profile one I can think of.)
These sites rely so much on having access to the game companies that they dare not speak ill of them, whether in reviews, unflattering news, or editorials. Many will post negative news only for games/companies they don't have advertising with or after many other sites (usually non-gaming) have posted it so it's like taking news from the AP. The ability to release a review just ten seconds before another site seems to be taken as some all-powerful thing in gaming journalism, though I doubt it matters much.
I don't blame gaming journalism. Well, not specifically. This is just a specific sub-industry having the same problem as journalism at large: unwillingness to investigate and ask hard questions. Most papers and news stations are controlled by powerful interests who steer their coverage, and they lob soft-balls at CEOs and the President or risk losing the ability to continue asking irrelevant questions. Gaming journalism and journalism at large do not report the truth, only truthiness.