Neither can dead PC's
And here is where we get into all kinds of assumptions. Whether you realize it or not, you are presuming distances favorable to the ranged party.
Not many direct ones anyways. But as noted, there is the indirect disadvantage of having damage focused on fewer PC's due to the archer staying away from the enemies.
The worst case is that you are incentivizing the enemies to focus fire the melee allies - which is likely much more detrimental to them than for the enemies you are focus firing with your ranged attacks (PC lives matter, their enemies are intended to die).