AFAIK (like from what the paranoia brigade posted a while back), wasn't MK-Ultra basically based on placing the victim into a state where they would do as asked, and not remember afterwards? That doesn't sound like multiplicity to me. And while my stance on this in every day life varies, I don't think it sounds like multiplicity even if the compliant state decides they have a different name.

At least, it doesn't sound any more like multiplicity than hypnosis.