I've been following this space very very closely and the killer feature would be to be able to generate these full featured videos for longer than a few seconds

I've been following this space very very closely and the killer feature would be to be able to generate these full featured videos for longer than a few seconds with consistently shaped "characters" (e.g., flowers, and grass, and houses, and cars, actors, etc.). Right now, it's not clear to me that this is achieving that objective. This feels like it could be great to create short GIFs, but at what cost? To be clear, this remains wicked, wicked, wicked exciting.