StreamOfTheSky
Adventurer
If we ran into several flying enemy encounters and she bought a ranged weapon afterwards because she had been unable to help in those fights, then sure that makes sense. For her to buy such a weapon because "Most consider it a necessity of equipment for each or most players to have a ranged weapon" seems like metagaming to me.
See, expecting every hostile creature you come across to be land-bound and no more than 60 ft away, preferably in some sort of tight dungeon-like cavern environment that restricts movement, especially on the vertical access, seems much more like metagaming to me...