Its cause they did false advertising and they tried to twist it around saying they didn't have enough material, at this point showing on the website canvas bag and delivering a nylon one they broke a few of the FTC laws and regulations. Yet the people invited to test the game by Bethesda got backpacks that looked amazing and made out of canvas. And they got it for free, while the fans tat pay'd 200$ for the collectors edition got screwed.Honestly i hope this will never be forgotten and people will be constantly on the fence with the upcoming games and collectors editions by Bethesda.
Hell, i didn't buy any collectors edition but this scenario even pissed me off.