They're still making more videos, we just need to be patient. You have to remember these tools weren't meant to be at full commercial tool level, they're simply giving us their internal tools. Whether that's a good idea or not I suppose is your opinion, but I wouldn't have wanted the game to be delayed just because tools weren't ready for public release.
They're also probably very busy fixing critical bugs and other things post-release, as evident by the 4 updates we've had since launch, so it may take some time for videos to be made.
