Hmm, I'm gonna go with no. I can see why you would feel that way, though.
I think it feels like the story doesn't really go anywhere because there's not a main character. If there's not a protagonist, then whose story are you telling? If you can't answer that, then, in a way, there really isn't a "story." Not having a protagonist can have a hollowing effect, and it's probably true here. I guess I feel like the movie isn't meant to follow that traditional narrative; its focus is on the stories within the story, not the story itself.
I actually thought Major Marquis and John Ruth were the protagonists and it's a 'story' of how they were going to get their bounty paid. The movie started with the 2 of them and their journey and followed them to the Haberdashery. There, the story was focussed on them again as they tried to figure out what happened prior to them arriving there and as they plan to survive the night or the next 2-3 days in the snow storm.