He says he mainly summarizes plot and that the qualities of the writing are not important. It seems like that would miss opportunities - for instance he didn’t think Vineland was adaptable and didn’t even recognize One Battle After Another as the adaptation when he saw it until the credits rolled. Another example, IMHO Arrival is a beautiful adaptation that improves upon the original short story mostly by addition, or maybe it’s cause Amy Adams is more charismatic than the character in my imagination.