First of all, WELCOME to the forum!
Second, enjoy the heck out of the GA3-12 when you get it, it's a fantastic guitar! I've been visiting one at my favorite place recently, but it's not in the cards because I just bought a different guitar, and I don't have the skill/experience to justify owning a 12er, but it is a great one and someday.....

Third, as to Taylor's consistent playability, I think it
does come down to the cutting edge manufacturing techniques (CNC, etc) and sound engineering innovations (NT neck, Expression system, quality tuning machines, CV bracing). The resultant product is nearly identical to the next one on the line.
There are those that say such things destroy the 'soul' of a guitar, and that only a more handmade approximation of a guitar has real 'mojo'.
Nonsense.
Inconsistent and imprecise workmanship results in inconsistent and imprecise sound and playability.
Taylor's techniques result in near-perfect intonation, 'fast necks', predictable (NOT a bad word) sound from the various tonewood combinations, and many many satisfied/inspired musicians, both on sofas at home and on stages in arenas. Whatever variations exist between a 414 made on Monday morning and one made on Monday afternoon comes down to the natural inconsistencies of the wood, which is actually desired by many and adds to the natural character of each.
Acoustic players tend to lean towards the appreciation of the natural, the basic, the intimacy of a musician and his/her instrument without lots of bells/whistles, effects, production gimmicks, etc.
Which may also explain why the fanbase for carbon guitars, although numerous and dedicated, remains a fairly small portion of acoustic players on the whole. Carbon fiber makes for an extraordinarily consistent product, so much so that it may take away something from the shopping experience since it really doesn't matter which Ovation model XYZ you try, it will sound identical to the XYZ next to it.
To me, that
does seem a little lifeless.
(I do realize that I'm biased, as a wood carver I really feel every chunk of wood has its own story inside, and whether it comes out in sculpture or in sound, no piece is identical.)
Not saying there aren't other great makes, but hey, like it's been mentioned, you asked this question on a fanboy forum, so......

Again, welcome, glad to have you here!
-K