As interesting as that story is, your version of events would require Elaine to have a vast knowledge of Voodoo magic, which I doubt she has. If she does know all about these voodoo spells, then Telltale should attempt to explain how she learned about them all without Guybrush noticing his wife's interest in the occult. Although Elaine always does have a plan, I have a hard time accepting that she was that well informed.
'Standing by my window
Breathing summer breeze
Saw a figure floating, 'neath the willow trees
Asked us if we were happy
We said we didn't know
Took us by the hands and up we go'