Believe what you want . I'm tired with this topic.
We would have a debate on nickel vs stainless steel strings it would be the same useless, everlasting question who leads man to make war, organize international soccer championships "who has the bigger d.ck ?".
But it has been clear to me through the year that the type/specie of wood used definitely confers the character of the instrument, it gives it its voice. That's why even when you change the pickups , the instrument will sound like upgraded poo if it sounded already like poo.
Good quality of wood resonates better, and as , according to the species, they don't vibrate the same way , they don't have the same "general" voice . That's pure genetics, science. Now I don't say that electronics don't matter . Try to sing with a poor pickup , and then with a good pickup , you won't sound the same...but your mommy and friends will be able to identify your voice.
Many friends of mine say my brothers and I have a very similar voice , they identify a certain character in our voice(while we still have our own voice) , and we get if from our parents.
And many times even our aunties are mistaken ,when they have one of us on the phone , they think it's one of the other (and we aren't triplets

).
That's what I know , and it's not a question of belief , I've been "suprised" many times about how two wood species could sound different.
That's why I'll never buy a bass made out of plastic , or luthite , or something else than wood.