I'd take it as a pretty bad situation, I believe it would be bad if your Playstation keeps freezing. Like Icegoten said, it's bad because you have to stop to reset it everytime it freezes. Wich must be annoying.
my ps3 freezes everytime it trys to load pipeline on cod4 and has done for months and still works fine so i wouldn't say it was bad it freezes just annoying