I think this is very true. Kids these days don't have the patience--we are living in a society that prefers shallowness, fast pacing, lots of seizure-inducing action and pretty eye candy in terms of VFX(I myself miss motion control models). That's why MTV no longer plays videos but a bunch of reality drek. Even once brave shows like The Real World that were fascinating in the early years have degenerated into sex orgies/drunken mayhem with cookie cutter casts.
This is a generation that is constantly IMing, tweeting, Facebooking, on their cellphones, worshipping shallow dipsticks like Lindsay Lohan, Paris Hilton, Kim Kardashian. Even sitcoms resort to very juvenile forced humor--none of which I find funny.
Writers don't want to develop slow burning stories that have time to develop and breathe so they are constantly jumping from one story to the next, eschewing good writing and interesting characters in favor of lots of action and visual spectacle. It is quite disheartening.