This description of Blade Runner as being cold and detached is completely accurate and also completely intentional, as that is one of the defining characteristics of noir, and Blade Runner was on the ground-floor of the relatively new sub-genre of "neo-noir." Note that this "coldness" is one of the (also accurate) criticisms leveled at Chris Nolan's work as well, for the same reason.
Some of us like that in our stories, though. I love a good cold, detached, cynical tale, because when I find myself feeling for the characters (as I did for Rachael in Blade Runner), I don't feel like it was the usual cinematic manipulations that caused me to do so - it was simply the sad nature of the characters themselves.