We didn't see the Game Arts logo in Brawl either. Perhaps it's because they are merely the developers?
Actually them being the developers was a secret until the "Iwata Asks" dealio a few weeks before Brawl was released.
We used to have huge debates about it, because it was confirmed it wasn't HAL Laboratories, and word on the street was that it had certain Nintendo employees, but was mostly 3rd party companies (these words were in fact correct).
I thought the developer was Capcom's Street Fight team (this was before Street Fighter IV was announced, because they announced they were working on some big project), and if not, Namco Bandai's Tekken team or SEGA's Virtua Fighter team. I heard a lot of crews/companies names' thrown out there, but my assumption of Capcom's Street Fighter team was the most spoken of.
This time around the developer wasn't a big giant secret for very long, lol.
The site just does copyright for the IP's shown. They aren't doing anything for Namco Bandai until credits.
Exactly. Nothing Namco Bandai owns has been shown, or is in the game (one or the other).
the website is basic and barebones right now, it's not anything like the dojo
there's your answer
This is another reason, too. Remember guys, the original Brawl Dojo was up from May 2006 to about July 2007. It got replaced by the current Brawl Dojo in July of 2007, and then the site included a lot more, although it was rebuilt(ish) from the ground up.