The curse in the original is also the curse we find in Perrault and brother Grimm version. That curse is the identity of the sleeping beauty fairy tale. A very important moment just like the deal in the little mermaid or the bal in Cinderella. Without these events we dont have story in SB Maleficent death curse is the reasons of all the events who Come After. The fairies didnt hide aurora to protect her against the spindle wheel. King Stephan already burn them. They hide her to protect aurora from Maleficent who wanted her dead. The curse in Maleficent change SB identity remove the Logic forget the third gift like if this is nothing. In Maleficent she dont want aurora dead but the whole point to hide aurora in SB was because maleficent wanted to kill her. I hope i m not to confuse but yes i prefer the original curse this Is not because the movie is call maleficent that we Can do wathever we want with sleeping beauty fairy tale who exist since a long time.