Overall it all seems to come down to "Icon has feature" to "Ranger gets feature" to "Community retroactively thinks feature makes sense as a ranger thing".
Aragon use healing plant.
Community thinks rangers having healing plants makes sense as they are loners and have no healers nearby.
Drizzt uses dual wielding.
Community thinks rangers should use dualweilding for melee as they think shields and great swords are bad for stealth.
Aragon uses divination item.
Community thinks rangers should have divination magic as rangers are the games detective class.
Dar sees through animal eyes.
Community thinks rangers should sees through animals to scout for danger as escorts and scouts.
Aquaman talks to animals.
Community think ranger should talk to animals to gather and send information.
Wood Elf and Robin Hood uses bows.
Community thinks rangers uses bows because that's what fighting woodsmen and forest warriors would use.
Marine uses ghillie suit.
Community thinks rangers use ghillie suit as rangers are seen as similar role.