I might rephrase Point #3 as "You can't make a minimally viable blockbuster." The biggest hits that drive the most people into theaters and make the most money

I might rephrase Point #3 as "You can't make a minimally viable blockbuster." The biggest hits that drive the most people into theaters and make the most money are the biggest budget movies that require massive coordination of people and require skillsets that don't scale down to small budgets. You don't build an NFL stadium based on what you learned at a high school stadium, and you don't build a Busch Gardens style theme park based on what you learned doing county fairs.