Di na. Parang yung 2007 tone party na lang. Nasa likod ng kurtina ang gitarista and di alam ng judges and listening public which guitar is being played. All things kept equal.
Actually not to defend it, but Arie demonstrated the effect personally to me much more convincingly. It sounds funny when described in words and sounds like a myth. But yeah I heard it it's like a phasing effect between the ears.
It's ok and maybe desirable for some. But it's not ultimately necessary. Let those who have it enjoy it. And those that don't, well, it's unobtainium so no use seeking it.