I think the idea was that with Harry the requirements of the ritual were fulfilled, though accidentally. One of those requirements is the death of an innocent.
In HPMOR, maybe (I think so, anyway). Rowling has stated that her version of the ritual is lengthy, and involves hings that made her … publisher, I think? … throw up.
In HPMOR, maybe (I think so, anyway). Rowling has stated that her version of the ritual is lengthy, and involves hings that made her … publisher, I think? … throw up.