For me it's simple. I'd rather a baby who wakes at night (which is totally normal and natural) then one who has a ridgid routine enforced on them which is contrary to every mothering instinct I have.

You would have to cut off my arms and legs before I'd ignore the crys of my child. I do not see sleeping through as an acomplishmemt if it has been achieved by force.

They are only little for such a short period. They are going to have a life ruled by the clock, let them just be babies for now.