No, not in any way. Ability to be present for a test does not have any bearing whatsoever on cognitive ability, nor does any test on the planet account for whether or not the taker is present.
I think the suggestion is that people who have less free time might be in more of a rush to complete the test, and that surely affects test results without indicating cognitive ability.
Why would they rush when they have a specified time limit to complete it that everyone else suffers from? Does having less free time make you stupid? Is Jeff Bezos a brain-dented man as a result of being busy?