Honest q - do you think these things will make a big difference if these videos can be made in 15 minutes for $20 or whatever?

Won’t the industry change to adopt that massive price cut/productivity gain?

The cost is and will be more than that, the time will be more, and I really think people are underestimating the time it takes to create good stories. Sure, there will be online locations to make short form video of all kinds. People have had video cameras in their pockets for a very long time and being hobby film makers are not really popular. The AI video sites now are 95% people fascinated with the ability to make video at all, and after a bit their interest dies because to actually make anything that requires real work even with AI helping left and right. Consistency is a harsh mistress; and AI video is only good with it for a short duration. So any narrative that makes a story worth watching, it's not AI slop, will continue to require humans and human creativity - for the consistency that gives a story the integrity that makes it worth watching. At least for audiences that care. No doubt, there are commercial forces working to develop audiences that like and prefer AI slop.