Looking at the "overall" graph they provide, it's clear that jobs as a whole have flatlined since 22, and even non-exposed jobs have had a growth rate hugely reduced. If we disregard the existence of AI, it would be easy to assume this is just the regular economic slowdown impacting younger people more than older ones. I don't see any correlation work done to isolate the source, especially as a lot of the "ai-exposed" work is also very much exposed to how much money is flowing in.