LGA also has tight alleyways. Last time I rode in there as pax, the crew gave the usual warning about early engine shutdown and a tow - but when the time came, they just powered into the gate normally.
It was 1) a zero-dark-30 arrival (red-eye), 2) a gate right at the tip of the terminal arm, and thus 3) the "turn-in" took place out well out near the parallel twy to 13/31. I'm guessing that (2) was the determining factor - the jet blast never pointed anywhere except at open grass and concrete, with no parked aircraft. The crew warning may have just been out of habit.