Wall thickness, and methods of construction will play a role in carbon failure, as well as exposure to heat. The older, cheaper carbons had thin walls, and fewer re-enforcing weaves. If you look at the construction of some of the heavier, premium carbons there is a considerable difference in quality and construction.
Aluminum will shafts will work harden and become brittle over time. Just the nature of the material. That's why aluminum mountain bike frames break after a few years of heavy use.
I had an autumn orange Easton 2018 split in the middle when i was a kid. It was one of four arrows that i owned at the time, and it had been used for three years and LOTS of shots prior to it's demise.
I can't say a lot about wood, as i've only ever used Lam Birch, and have never had a problem.
At the end of the day, we are all responsible for our gear and our safety.