are you serious?

so towards the end of this movie, the only way for Derek to break the spell on Odette was to "make a vow of ever-lasting love" to her. and he did..... but now, completely outta nowhere - it means Odette's gonna die? WHAT THE F.....? he made it for her! he said her name!! he didn't say somebody else's name, he didn't mention the name of the old hag next to him disguised as Odette, no. HE CLEARLY SAID ODETTE!! so how's she gonna die?! my god, did the idiots who wrote the terrible script for this movie do that on purpose or something? did they really think the audience's THAT stupid?!
s**t, this was written by Richard Rich! god damn you, Rich!