MidgetBoy,
SIA wants the best training possible for their cadets/pilots.
So what did they do? They set up their own flying school, Singapore Flying College. Say what you want but, when it comes to training ab-initio to the RHS of a widebody, no other school/academy/college comes close.
I don't doubt the capability of your prefered school but dude, the cost of 'your' training proposal doesn't give SIA much control of the training of pilots that they want to create. They are not going to short-change the training of their pilots. In this training aspect, it's not the money they are worried about.
SFC motto. 'Bene Docere' 'Teaching it Right'