You know, Baby A and I came from the same embryo.
This does not mean we think embryo splitting should be allowed for assisted reproduction. Because they call that "cloning" and that's implicitly or explicitly illegal just about everywhere.
Identical twins will just have to continue to be freaks of nature, embryonic mistakes. IVF multiples are absolutely fine, because they aren't clones. They are individuals with their own, distinct DNA.
I cannot begin to fathom the repercussions of purposely splitting a human embryo... Maybe I will have to think that through sometime soon. But I'm not an ethicist for science, so it will be (of course) just my perspective on things.