This gets particularly interesting when we consider that most people would be absolutely horrified at the idea of killing humans which are "imperfect" in some way, yet as one of the sibling comments says:
Its perfectly fine to take an active hand in evolution by selective breeding through marriage, thus "remove "bad" genes from a family tree and potentially adding "good" ones.
Presumably the creation of the embryo would've involved some degree of selection already, so "embryo hacking" seems more like patching bugs before birth... and this process is basically on the border between controversial abortion and widely-accepted selection before conception. I suppose your opinion on it rests on some deep notion of what you think humans and life is/should be.
Also non-religious and ambivalent about this - if only for the fact that governments and corporations are likely going to eventually figure out how to use this tech to their own advantage...