Indeed, but if the wood transfers vibrations to the pickups, those vibrations will superimpose upon those of the string that are 'detected' by the pickup, and alter the sound.
On a more relevant note- I'm loving these guitars!
Especially the carved top.
unless the pickup is microphonic, this is just plain false, and misinformation.
It may well be a negligible effect (or it may not- I dunno how significant it is to be honest), but I've just studied 2 months of waves and oscillations on my physics degree (And no I'm not claiming to be an expert or anything. Actually, FWIW superposition is something I think I learnt a couple of years ago anyway…) and I know enough to say with fair certainty that what I said definitely isn't false.
--------------------------------------
Brief attempt at explanation if you want to read it:
Its the relative motion of string and pickup that matters;
-Imagine the strings and the guitar body are both vibrating
-Imagine that at one point in the strings oscillation, the string is moving relative to the pickup
-Imagine also that at the same moment, the body is also moving due to the vibrations the string transfers into it.
-Some of these vibrations in the body will transfer to the pickup.
-Pickup will 'see' the string's motion as different to how it would see it if the pickup were completely stationary
-So the signal generated in the pickup will be different to if the pickup was stationary and only the string was moving- and therefore so will the sound reproduced by the amp.
--------------------------------------
And of course the string moves a lot more than the pickup does- im sure the vibrations in the pickup are small by comparison.
And also vibrations will transfer to the pickup on any guitar with any pickup mounting- I guess the idea behind direct coupling is that the vibrations will transfer better. The springs and plastic would dampen them a little I guess.
TBH I too would be skeptical about how much of a difference it makes overall. I doubt somehow that my ears would be sensitive enough to hear any difference.
And I can't believe I bothered to type all that. I really don't care *that* much about direct coupling…
Ah well.
I'm going to bed.
*Re-patches the hole he couldn't resist making in the can because he can't help being an overly pedantic ass*