Yes, it's disappointing how many of the negative reviews are based on a mistaken assumption about Les Mis as a musical (or 'lobotomised opera' as the awful Guardian reviewer ridiculously described it) or just a general hatred of musicals. I'd much rather read negative reviews if they are negative from the basis of research and knowledge and can comment critically in an informed way rather than just those written by people who clearly hate musicals!
It's getting plenty of 5* reviews to go along with the negative ones though, it was always going to be polarising.
As for that audio of One Day More, I assume it will be better when accompanied by the visuals, as only Sam and Eddie really impressed me from that brief clip. And ending it when they did on that bit of the Thenardiers was not a good idea - I wish I'd heard more of them than a few seconds which didn't sound good at all! I'm obviously reserving complete judgment until I see the movie though, just commenting on what I heard in that clip.