It's actually better this way than to wait for people to squeeze
in , and still cannot fit in attempt to squeeze and waste time.
I love the way the NEL works, 18-20 secs and regardless of
whether you board the train or exit the train, the door closes and
never opens back. This is both on peak and non peak periods
It makes you move faster ! then to relax and stroll in and out
of the train ..
SMRT pamper commutters for too long already, leave train doors
open for a minute , etc at stations like JE , etc .. delay and
waste time. People just dont give up when they know they cant
squeeze in.
NEL's case is all because of what if... There's PIW happened to be
boarding/ alighting? I guess that's why CCL's dwell time got
adjusted later on.
SMRT's problem I believe is too much of the connecting train
must be readily available at platform nonsense. Sometimes they
could rush commuters at stations like Chinese Garden only to wait
for 70 sec at Jurong East for the NSL train to arrive.
SMRT is not pampering ppl, it's creating a hazardous ops env...
Reminds me of days back at Expo.. Took the train, when it arr TNM,
ppl rushing to the WB platform when the buzzer and flashing light
was alrdy up.. TO dare not close door.. Rear train was 1 min
behind. 
Some commuters complain dun have to be scared of.. Like tis
gotta accommodate for each n every complain to no end..