Most of the justification for FLynx here seems to be based on how the Gazelle used to support TOW Lynx during the last century - a model that was never tested in conflict and is hopelessly out of date given modern sensor technology.
It was tested and worked very well on Op Telic we flew as pairs with a Gaz and Lynx, (admittedly not against a sophisticated enemy). However the Gaz was a second pair of eyes, one of the crew would also be FAC/FOO and/or NGSO. The Gaz could also Designate with its Laser.