yes and no. remember philippines are english speaking country and msot of the maid they have good education. so for those 1.5 years in canada, they could easily get back their qualification conversion and back to the field they used to be (instead of domestic helper).
unlike those HK people, our english is not that good, and we don't bother to be the domestic help (loosing face ma). so i don't think many of the HK people will go for that route. but mainland china people does. and that's what they are doing nowadays..