the 89e can be seen as a proper Express service, similar to its
5xx counterparts as seen from running long express sectors, unlike
some, such as 97e, or 502 which express for only along certain
sectors along its route.
and yes, pasir ris is a high population area, it sure take very
long if 89e goes there, so yeah.. a good move.
(take 53 from HG to CGA bia PSR can make u cry)