Bonding can and does happen all the same with bottles. This isn't a place for judgement, some mothers just don't have a choice. No one should be embarrassed about how they feed their babies choice or not. Bottle feeding also gives other close relatives the chance to bond and share that closeness.
Somehow I never got a picture of me feeding Calvin but I have photos of Will and Granny Clara feeding him. Both photos of a happy and content baby who is loved by the people holding him (and many others but I don't have photos of them feeding him). It's not just a mother who deeply loves a child.