I'm not sure i agree totally with what's being said here.
I admit I bought my Fender paramount PM1 unseen when I heard of the Adirondack spruce top. I knew it would be a pretty cool guitarr.

Similarly two of my Yamahas are of rosewood construction and they are very fine guitars.

However a couple of years ago my wife bought for my Christmas present something I'd always wanted. Gibson that year bought out a made in the USA acoustic guitar for less than a thousand pounds - the G45. I never dreamed I'd be able to afford a Gibson. But that year aged 74 I got my Gibson.

Whilst I love my other guitars the treble strings on my Gibson have this wonderful thing. the three strings sound like three separate voices and they harmonise quite perfectly. Presumably the expensive Gibsons are even better.

What I'm saying is that I think the Gibson company must have learned some quite unique guitar building techniques in all the years they have been at work.I don't think they have much to fear.