All Accepted Nominations should count in All Games (stats/medals) whichever the game you submitted
If you are using a single account for Ingress & Pogo, your wayfarer nominations appears at the same place and agreements counts in both games as well.
If so, why not grant All your nominations accepted, whichever the game you submitted, be in All Niantic games medals and stats ?
Ingress : "Discovered Portals" (stats)
Ingress : "Seer" (Legacy medal)