The evolution of CF use in bikes has come a long ways. But strangely there's a large differential between the properties to take abuse versus fatigue strength. Years ago, I crashed a few times on my early Kestrel CS-X mtn. bike. One was laughably a dang hard slam on a large rock and I went the other way. The dropout derailleur side, chainstay took a significant hit, chipped it but otherwise fine. NO way would some modern CF take something like that.

Let me remind, this was a FULL rigid, non-susp. fork atb bike. Think about it. The advent of full or front susp. encouraged a lighter, thinner layers and dope.

I'm not even sure an ally or steel frame would've taken the same hit without some major damage. I was impressed.