Question about Bane

[AreeyaJaidee]

Hey all, I've been playing SMN for quite awhile and I keep having this nagging annoyance about AoE situations.

Now suppose you DF a speedrun and the lineup you get DPS wise is something like: melee + smn

What confuses me is how little power smn has AoE wise:

Blizzard II spam (expensive mp wise)
Bane (dots spread to 3 targets)
Miasma II
Shadow Flare
Pet Enkindle usable only every 300secs
Pet aoe

I don't understand why Bane forces smn to be optimal for only small groups. As it stands:

Whm in cleric can do more aoe DPS than smn
Blm can do more single target and aoe DPS than smn w/ infinite mp.

So I'm just wondering, does this seem good or not?

I'm only i120 ATM since I'm still in process of gearing and will finish my smn zeta tonight, it would be nice if a high geared smn could please give some DMG reports on how much DPS they get out of their aoe alone. So far using all my aoe available blm and whm still kill mob packs faster than I could even dream to.

Side note: Bane seems to spread to targets without any type of filter. I keep seeing bane spread to mobs I already dotted or mobs who are nearly dead instead if mobs with high hp and no dots. Has anyone else experienced this? It seems very inefficient.