I am LII. I think Mr Nobody shows the underlying reasons of indecision by finding value in every possibility. At the age of 9, Nemo could choose to stay with his father or his mother. Nemo could choose to marry with one of those three girls. There is no right or wrong answers so that every path could be right or wrong on its own way depending on where you look at it. Nemo could alter his actions and decisions in order to change his path. He didn't choose a path, instead, he explored each path by forecasting (Ni demonstrative, Ne creative in my point of view). After all the exploration and forecasting, he says that the only viable move is not to move (Se polr). If this was a Ni movie, there would be one right path for him and he would act and decide in order to get alligned with that path.
My IEE friend also likes this movie a lot. For her, this is a movie about exploring different possibilities.
At the end, this is a movie, an art form. If different kinds of people can internalize it, then it is a good one.