Uhm. Wut.
No, BRD/MCH are ranged physical DPS that have single-target AND AOE skills (potent AOE skills, mind you—Rain of Death is already better than Bloodletter on 2+ mobs), and said AOE skills need to be used when there are large groups of mobs (generally 3+). BRD’s Rain of Death is 100 potency per mob; Bloodletter is 130. Therefore, Rain of Death—which costs zero TP and resets with critical DoT ticks while in Mage’s Ballad—is the better option at 2 or more mobs.
ALL DPS are DPS with potent AOE skill that should ALWAYS be used when a threshold is reached of the number of mobs in a pull.
Every job has an AOE skill by the time they hit level 30; by the time they hit 70, there are usually more available. And AOEs are more potent the more mobs they hit, beating out single-target combos by far after you hit 3+ mobs (5+ for MNK’s Arm of the Destroyer).while paladin and dark knight and as warriors are convince that they desire grabs as many mobs as possible this concept isn't away work for most dps who don't have many mass dps moves.
Both also have AOE spells—Deathflare is an AOE; Fire II and Flare are AOEs. I’ve seen both top 12k DPS in large dungeon pulls from AOEing—you don’t see those kind of numbers with single-target damage; no where close.summoner and black mage have single target damage spells.
Again, every job has at least 1 AOE by level 30, more by the time they hit level 70.the tanks spend they time and desire want everyone mass dps everything down most damage dealing jobs don't have mass dps moves so instead help they damage dealer counter-part they make worst on them.
BRD, specifically, benefits immensely from multi-dotting mobs (always has, ever since ARR with the River of Blood trait), and spamming Rain of Death procs and Quick Nock (again, something that has ALWAYS been the case). SMN (and SCH) both have a skill called Bane, which even after the SB nerf it took, is used to spread their DoTs to multiple targets for more damage.
EDIT because Daily Limit is arbitrary:
Also a bad choice—you use Bloodletter for one mob/enemy/boss, Rain of Death for 2 or more mobs.