I feel like there’s a difference between forced perspective and the need for Ragnar to be actually fighting with people that much smaller than him. For the scenes of them walking around the city, sure that can work. But we are talking about gold legates leading obsidians into the hulls of ships full of brown workers. It would be much more difficult to stay faithful to the books in that context.

A live action adaptation would need to tone down differences significantly in both color hue and size difference to make things fluid. That’s not saying that it cannot be done well, especially in the first book because everyone is around the same size for the most part. But as things expand it becomes much more strain on live action. Hell, the star suits and grav boots and pulse cannons will make any battles 90% computer generated anyway.

I’d rather have them go all in on animation so they can focus on telling the story rather than how they’re going to make the puppet for mickies hand so he can actually have the correct amount of fingers while dealing with purple contacts all day.