SFO/LAX/JFK etc ATC is always in a rush to get rid of traffics. Always using non standard phraseology, pushing pilots to make visual approaches, giving challenging shortcuts and so on. Even english speaking pilots complain about the wording and speed of controllers.
They want to save a second but waist 3 or 4 when the have to repeat the clearance at times.
SFO is and airport where RWYs are so close to each other that it is easy to make a mistake in high work load environment( follow the traffic, clear visual "maintain 180 till outermarker...bla bla bla). Would be easier and safer if they just stick to a safe vectoring philosophy and not to a cowboy stile one. Its not a rodeo!