It’s not my area of expertise, but a friend in the field told me the fun fact originally.

Looking into it, it seems like smell has the most potential for genetic variance: https://pmc.ncbi.nlm.nih.gov/articles/PMC3990440/

That said, I can’t find any direct research comparing perceived senses. So they (and now I) might have oversimplified.

Thanks for the link, looks interesting!