I don't disagree with that at all. I have had thousands of guitars go through my hands when worked for GC. The differences in the wood was something that I ALWAYS explained to customers (as I would pull at least 3 of the same model for them to try). With Fenders, you could ALWAYS hear a huge difference in tonal quality in the US versions of every model as well as the imported versions. The only guitars that do not exhibit this, IME, are high end hand made guitars and basses. Alembics, Pedullas, Handmade Warwicks, Elricks and US Laklands are consistently consistent in tone. The Skylines do have a slight variation between basses of the same model, but the difference is not as huge as it is in the US Fenders.
I got rid of a Skyline 55-02D because it was just TOO dark...I played one over the weekend, same electronics, still made in Indonesia, same maple fretboard...and it was even, bright, balanced and sounded great. Now I want a 55-02D again

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There has to be something with the aging/drying process of the wood, density of the wood or thickness of the top between Skylines and the US models that give for better consistency in the US versions.