Who cares, as long as the end results are close (or close enough for the uses they are put to)?
Besides, "has nothing to do with how the human brain works" is an overstatement.
"The term “predictive brain” depicts one of the most relevant concepts in cognitive neuroscience which emphasizes the importance of “looking into the future”, namely prediction, preparation, anticipation, prospection or expectations in various cognitive domains. Analogously, it has been suggested that predictive processing represents one of the fundamental principles of neural computations and that errors of prediction may be crucial for driving neural and cognitive processes as well as behavior."
https://pmc.ncbi.nlm.nih.gov/articles/PMC2904053/
https://maxplanckneuroscience.org/our-brain-is-a-prediction-...
My meaning is not so much that intelligence will go away as a useful trait to individuals. But more that it's utility to the economy will be a commodity, with grades and costs and functions. But again , I'm speculating out of my ass here.
In that, if you want cheap enough intelligence or expensive and good intelligence, you can just trade and sell and buy whatever you want. Really good stuff will be really expensive of course.
Like, you still need to learn to write and have that discipline to use writing in lieu of memory. And you still need to repair and build machines in lieu of muscles and have those skills. Similarly I think that you'll still need the skills to use AI and commoditized intelligence, whatever those are. Empathy maybe?