The overall damage might be lowered but TBH if you’re in a late game situation where DPS is an issue it shouldn’t be hard to mold your team comp to include a linker. So I wouldn’t worry too much about that.
However even if you take out the Linker it’s good to take note that even AA Archers have AoE attacks. Your auto attacks are mainly used while skills are on CD to supplement for down time between skill rotations.
Certain archer classes like falconer will also supplement the dmg w/ circling which increases AoE dmg ratios.
If you’re dedicated to playing an AA Archer just take the initiative to form your dungeon groups and ensure you party up w/ a linker as priority. That way you dont have to worry about the issue all together. In the grand scheme of things though I highly doubt anybody will even notice a difference. Just make sure to keep your weps at a high level and you’ll be fine.