So you're saying that in Genesis 2:9, it doesn't necessarily follow that the tree of life is one of the trees that was good for food. Seems like you are thinking about clean and unclean foods. People are often confused into believing that everything that could be eaten, is food...but, of course, this is not true. And when Scripture says something like all foods gave been sanctified by Yah, it is simply saying that, yeah, everything that has already been establised as clean in Torah, is clean...so all FOOD is indeed clean and sanctified, but (as a side note) pigs were never meant as food.
Anyways, I only brought all that up, because you seem to be using that argument in the case of the two specific trees mentioned in the Eden account and I can see your point, however, I am hesitant to fully come out and say that something that may in fact be Yah's work, could be the work of hashatan.