Devops does involve operations, but is not exclusively that.
Having an Operations person work together with developers doesn't automatically make the Ops engineer into a DevOps engineer. Just as it wouldn't make the non-operations developers into DevOps engineers.
Maybe the better term would be "Operations Engineer for multi-disciplinary Team". Not DevOps.
EDIT: It was previously written "It seems we both agree that having a Ops engineer is not incompatible with DevOps?"