It’s not about making money, it’s about making all the money. Stock holders will pressure to fire the guy that does that.

It helps that Dune part two wasn’t a sequel but the second part of a big movie. Much like The Lord of the Rings trilogy was a huge movie in three parts and not just a follow up because the previous one made a lot of money.

Dune part one is amazing but the narrative is incomplete without the second one.