Another fellow cyclist here. Aluminium in fact has a very similar failure mode. It also fails catastrophically without warning. This was also brought against al

Another fellow cyclist here. Aluminium in fact has a very similar failure mode. It also fails catastrophically without warning. This was also brought against aluminium frames when they first started coming up to replace steel. The bigger issue with carbon (in the context of cycling) is that there can be significant fabrication defects (voids) that are impossible to detect without special equipment. On aluminium frames you really only have to look and the welds to see if there are defects. Together with the fact that most (even premium brands like trek, canyon...) manufacture ultra cheap in China with very little QC (due to the race to the bottom regarding costs) , means you could get a significantly weakened frame straight from the dealer.