Well, it's hard to tell from your Wiki link, because it reads like somebody's term paper to justify that position. It is anything but objective.
As I implied above, if you asked me if there is anything inherent to skin color which directly drives average intelligence, I would say no.
If however a significantly higher percentage of people with a particular skin color evolved through many generations to reward physical vs. intellectual achievements, there may be a correlation (not causation).
The Wiki link also defines "race" as a sociopolitical phenomenon and not a biological one, and questions the definition of "intelligence," so it's premise is to muddy the discussion such that no consensus can truly be achieved. Which, as near as I can tell, is what this article concludes, although you like to toss around superlatives like "most" quite easily in creating your perception of consensus.
In the end, to believe that any human brain from any ethnicity, geographical region, etc. is statistically likely to be 100% physiologically identical (i.e., immune to localized evolutionary factors) seems unrealistic. But, as has been discussed when this topic has arisen before, there is no clear social benefit to pursuing it.
It just rankles me to be considered "racist" by soft-thinking wokists because they can't grasp this concept.