For sake of argument I'll suppose the story's true .
What I find also ridiculous in the Adam & Eve's story is they were just forbidden. They were not being informed of what today we call the small print.
God could have at least told them "Yo if ya'll disobey me, this what's gonna happen: XYZ" but no, they just got told you can't take that, that's mine. Then he let them sin and put the curse afterwards.
Plus cursing someone that's so gypsy and withcy, that makes me laugh even more.
Even as imperfect parents we tell kids the consequences of doing something they aren't supposed to, wouldn't you expect it much more from a perfect "Father" as god should be?
I wonder if had they known the small print would they have still sinned?