.....I sure have heard about swollen bellies, bracing coming loose, high action, etc due to high humidity, but not this sort of discolouration/ laminate peeling (unless in some really old guitars)...... If really their guitar is so feeble and not able to stand a little humidity then perhaps they shouldn't be selling them in these parts at such prices.
Moisture is a PITA (pain in the .... behind) and can migrate under the finish causing this kind of finish separation on ANY brand of instrument. In this case, the peg head is a black Lexan plastic overlay glued on top of the wooden peg head, then sprayed over with the normal UV cured poly finish that Taylor uses. This problem is quite rare, and I'm sorry that you are suffering. You might be happier with some other brand going forward. But don't be surprised if your extreme environment causes similar issues with another brand of guitar. Only carbon fiber guitars are immune to very high or very low humidity, but all CF instruments are quite expensive.
As to your second point, Taylor is really clear and forthright with information about proper humidity care for their guitars -- the best in the industry, candidly. Check this out:
https://www.taylorguitars.com/support/maintenance/symptoms-wet-guitar If you chose to ignore that advice and now have issues, how is that their fault? If your car engine blows up because you let it run low on oil, your auto warranty will not cover the repair.
Vent your frustration if you must, but having now received multiple constructive suggestions and yet continuing on with your pejorative commentary, it is not clear what else we can do for you here as an on-line community. This is meant gently and in the nicest possible way, but if you are not listening then I'm done trying to help.
