Moses was one of the seven players dropped from the initial list, as CAF announced its final shortlist this week .
“I’m not happy because I feel that Moses should be part of the last three,” Pinnick told Citi Sports.
“The only reason why [Riyad] Mahrez won the award last year was because of what he did with Leicester [City].
“And Moses helped Chelsea to win the league; played in the FA Cup final; and helped Nigeria qualify for the World Cup. So I wonder why.”
Egypt international Mohamed Salah, 2015 winner Pierre-Emerick Aubameyang of Gabon and Senegal striker Sadio Mane made the final trio.
“I’m surprised. Maybe we should look at other criteria either than coaches who already have their mindset about who they want to vote for,” Pinnick added.
“Tell me what Pierre-Emerick Aubameyang did last year to deserve a place ahead of Moses. Aubameyang should not be on that list. He’s struggling with [Borussia] Dortmund.”