The Tree of Knowledge of Good and Evil (TKGE) makes zero sense either. Why bother creating either tree, if the only purpose was to make them immediately forbidden (to the extent of surrounding them with impenetrable security after the fact)? The temptation trap could just as easily been laid using bog-standard trees, without the risk of giving superpowers.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'