Could he pass it if he was educated to do the task from birth? Human level intelligence includes being able to be educated, the ML models we have done so far can't be educated so have to match the level of educated humans to compare.
General intelligence as we know it requires ability to receive education.
Its not a test of AGI. It tests whether you possess innate human capacities: rudimentary arithmetic & geometry, etc. Most of the problems were created manually. The original paper states that they limited the test to innate human priors to make the scope well-defined.
If you can't do ARC, you aren't general enough. But even if you can do ARC, you still might not be general enough.