Interesting video on the topic. I won't say anything else on the matter as I don't want to stir things up.
I understand his sentiment but look what he's got each end attached to - the biggest body and headstock you'll ever see (big pieces of wood).
This game has been played out many times. There is no doubt instruments sound different, but yes similar basses have way less variation than guitars do. But as mentioned before you can hear the acoustic differences alone in many. Otherwise there wouldn't be "dogs" out there. Ever had a nice instrument that was dead or didn't sound great? Anyway my 0.02.
