That video touched on so many great things I agree with.
This is what i've been saying all along when I heard about how many faces were expected to be in this film. It's too much, too soon. I know DC is trying to "catch up" but I don't see why they feel they need to try and get a team-up film along the same lines of where the Avengers are at now. There's NO NEED for any comic property to rush! DC has GREAT characters and they should give their property some time to grow and coexist before Justice League.
Marvel, whether you love them or not and not making this a love/hate between DC/Marvel (For the record I love characters from both), Marvel did their due diligence to make sure solo films were made to develop the team chemistry that we see now. Had there been no Thor or Captain America (etc) film, I would not care much for either. But now that I have had a chance to see each character have some time spent on their own and get a feel for knowing them, seeing them as a team just feels a lot more amazing than simply throwing these characters together right off the bat (no pun intended) without knowing anything prior to their cinematic character development.
At least ESPECIALLY with the trinity of Wonder Woman, Superman, and Batman.... they are each very important roles and should have had their own independent story to show before their eventual bringing together. I'm not saying re-tell the Bruce Wayne child experiences for Batman, but just make a great DCU entry for Batman and then have the conflict between Superman and him as a separate film. Get the WW film made and released... THEN you got the nice rich setup of characters to come together and do the team thing.
You can bring in secondary characters into someone else's film, but doing this with heavy-hitters as a side-part to a film just makes it weaker in my opinion.
I would LOVE to see this team up, just not right now. I REALLY want to see a Wonder Woman film before I see the trinity come together. I would be okay with it being a Superman Batman vs. film and standalone like that if it had to be that way. We all have seen lots of Batman stories. If they have to do it this way, then just leave it as Batman/Superman. They're 2 big characters. I really don't believe there is enough screen time to fit both Bats and Wonder Woman into the picture in their introduction to the new DC Cinematic Universe.
I didn't even touch on Doomsday. Why ALSO bring in such a heavy-hitter baddie so early on?! Too much to absorb.
And as a side note.. cripes DC... WHY can't the TV shows coexist with the film universe?! People already LOVE what they've done with Flash and Arrow.