Personally, I think that weird for the sake of weirdness can be a good thing if it's well done and I think it's the case here. There's an expression that says "It's not the destination, but the journey that counts" (or something), well when it comes to movie sometimes it's not the point that counts, but the trip. And Matalo! is one hell of a trip!
You're right, but I don't think it's too big of a flaw to really hurt the film.
I might not agree with you when it comes to DiCaprio, but I sure agree with you here!