Never said it’s not useful, quite the opposite, it’s a tool that will revolution artistic production. What I meant is that ai is still not replacing human part in the process completely just yet, even using 3d and drawings you would still need some humans to do it, that’s it.

It still wouldn’t be able to convey a narrative, so much so that the video you shared uses a live action base to keep it together, but how would they be able to do that with the high action scenes that are the anime money shot? My argument is not that ai is just a fad or will become obsolete, quite the opposite, ai will be a tool on every artistic production, but like every tool it’s not perfect, some human intervention is still needed at least in the foreseeable future. Anime (along with a lot of animation productions) will change, but human made animation will still be needed, it’s just they won’t have to churn out inhuman volumes of work (animators are among the most exploited jobs in the art entertainment industry) and instead will be able to focus their expertise in works that will be more fulfilling for them. Ai is a good thing for artists, it makes their life easier

Yes and no, Part of what makes animation so appealing is that with enough skill, anything you can imagine can be done: a dog would never turn into a horse but jake the dog can do it. Now, with this new “full AI” technique, you may be able to make nice and dynamic scenes, but it may not be able to make everything, think about the fight sequences in jujutsu kaisen, at what point does recreating the choreography becomes impossible for real life actors? Will using this ai technique remove some of the fluid and dynamic movements? It may be possible to recreate with camera tricks and cables, but it won’t look fluid, this kind of sequences are so unreal, so exaggerated that even trying to emulate them in a low budget might be too demanding and won’t give the expected results. So, in short, yes this technique will be used to make production times shorter, but in doing so the genere as a whole risks to loose its real appeal, anime is not just waifus or husbandos, it’s sakuga, it’s imagination and impossible situations brought to life. So the path forward I see is that this technique may be used for the boring static conversation shots that plague the genere while making them a lot better, a lot more animated while keeping the sakugas for the high demand scenes.