I can see how there would be a pattern. Some average Joe's need/affection towards their animals can directly correlate with neuroticism, but not all.. just a noticeable pattern within some percentage of people.
I think we here are a special group, heheh. We probably don't apply in their research, if anything some low 1%. There aren't too many people in the world (proportionately) who are obsessed with dogs AND actively involving their dogs in titling, sports, and all that jazz.