They're ebig smart to avoid marvel's well-crafted universe, which is way too embedded in pop culture to try to imitate at this point. When Fox and Sony do the same, it looks fairly weak. A Marvel post-credits scene is usually a HUGE deal. Days of Future Past, a great movie, was pretty meh in the post-credits. "X Men are going to fight a big, bad guy news at 11"
DC is (in theory ) taking the fact that their top 2 iconic characters (more if you count that several others are pretty iconic as well) don't need much backstory.
MoS was (I'm in the minority here) an excellent way to start the DC film U. It gave us all the over-the-top action and set up a world full of consequences to shape a universe around. marvel is giving us the light hearted stuff and slowly showing us what terrible consequences can come off it.
The video made a very good point on one thing. I don't think audiences will care much about details or Easter Egss as long at the basic template is followed
Superman is the moral backbone, inspiration and powerhouse
Batman is the hardcore bad ass who uses fear as opposed to inspiration
Wonder Woman is a femininst icon - by being a strong female character and not overly sexually objectified (she has a lot of potential)
If they leave this out then yes, its a failure. I see promising signs in both directions. Having people in the film with comic book affiliations like Affleck. A visual guy like Snyfer and bringing in writers to shore up the weaknesses of the concept people like Goyer and bringing in Geoff Johns (he was brought in as an advisor or something or other) were all smart moves.
Cavill is IMO a great Superman if he is written correctly. he nailed everythhing they gave him, the script simply fizled at the very end but if the sequel has Cavill become morallly incorruptible as he has seen what he is capable of when he is Superman (and to be fair he isn't really Superman until the end of MoS) then we have a Superman who has saved the world and we can see him slowly show the world why he is Superman.
Dawn of Justice has a lot of good concepts to play with, albeit a lot of risky production and opportunities to mess up - it has the potential to be much better than people are expecting.
The theme of classic hero's as represented in the modern world is really good if you can pull it off. Jesse Eisenberg from the Facebook movie could absolutely pull off the malivious and modern lex we hate - whether he's up o the job and the script does the job is another question