There is a difference between the traditional omniscient POV (not in favor with genre readers at the moment) and something that looks like a close third POV ... until suddenly the writer hops to another character's head, which for some readers can be jolting, and certainly undoes the advantages the writer started out with using the closer POV.
There are advantages to an omniscient POV, just as there are -- different -- advantages to a serial close third person POV (serial because it changes between scenes or chapters). I think problems arise when writers don't know the difference and try to have it both ways.
There are advantages to an omniscient POV, just as there are -- different -- advantages to a serial close third person POV (serial because it changes between scenes or chapters). I think problems arise when writers don't know the difference and try to have it both ways.