The big issue with MJ Archers is that most of their skills are just completely worthless and/or have huge AP costs and you need to subjob the Archer skill to actually get Sharp Shoot. The Charge attacks make no sense in scale, do pitiful damage, have a charge time, and fail if the target moves. Most Gunners have access to subjobs to attack through a block too.
Main Job Archers are kinda 🔥 in WoTV both because of the Topology and size of the map but also because the majority of their skills are trash. They are mostly ridiculously expensive for no reason and almost all have a Cast time making them not only slow but inaccurate since you can miss if the target moves.