You could get four random people to explain Blade Runner, or any other favourite film - chances are they'd be missing points and putting their own spin on things. But that's the way things go. Best to view the film for yourself and see if you make more sense of things than this viewing by proxy approach.
From what's been said about some characters being too sketchy, I wouldn't be surprised if there were cuts in a desire to keep the film around two hours, which is a shame if true. There have been director's cuts of a number of Ridley's recent films, so I'd say it's quite likely. It's used as a marketing ploy these days anyway. Prometheus will, I imagine, be a worthy candidate for this if indeed it had to have a trim for timing.
But if a DC is on the cards, like Kingdom of Heaven before it, I'm sure an expanded version will fix some of the perceived character flaws. We'll have to wait another year probably. Are you so convinced this film is shit that you'll wait that long? Or just not bother to see it at all?
Though actually this forum seems to have really brought out the glass half empty brigade, most of the reviews are positive, so I don't see all the doom and gloom.