Something I picked up over the years. The reasons are potentially personal or emotional.
Skills, experience and education are important.
But they are also concerned with cohesion.
“Is this someone I can have a beer with and have a good time”
“Will this person enjoy the company of the staff under my charge”
“That guy drove in with a insert political message on their bumper sticker. :/”
“Gross they used random font”
“We got too many Marks at this company”
HR is playing pokemon trying to catch em all