The counter argument is of course maybe you don't need to understand our kind of intelligence to create a different kind and that could well be true but then how do you determine if a system is intelligent.
Unless the new system is intelligent enough to reason with us on our level in a way we can "see" is intelligent it becomes a philosophical argument.
We also have a natural inclination towards anthropomorphising systems that mirror us, this is already a problem with LLM's and people overestimating their capabilities or forming actual emotional attachment.
Then there are those of us who know more about how they work who in theory should be more immune to that and aren't.
I added some stuff to my agent.md to make it sound less human and to communicate more like the machine be it is because I find the faked emotion extremely jarring.
It can't be sorry, it's a set of numbers, it sits in the linguistic uncanny valley.