With the way marketing is, "streamlined" has become the politically correct way of saying "dumbed down." In actuality, proper streamlining should require more work, as you are attempting to make inherent systems more intuitive.
Thing is, I can't think of any proper examples where "streamlining" WASN'T also dumbing down. I have to go all the way back to Tie Fighter (when compared to X-Wing).
EDIT: I can't think of any I'VE played, though there are probably some shooters and RPG's that have done so (as the Crysis example below).
For example, ME2 was BOTH streamlined AND dumbed down. ME3 was just the latter.
Thing is, I can't think of any proper examples where "streamlining" WASN'T also dumbing down. I have to go all the way back to Tie Fighter (when compared to X-Wing).
EDIT: I can't think of any I'VE played, though there are probably some shooters and RPG's that have done so (as the Crysis example below).
For example, ME2 was BOTH streamlined AND dumbed down. ME3 was just the latter.