Can someone give me an in-depth explanation why Summoner is arguably the worst DPS?

[Sen_Terrechant]

only SMN's bane has a max of 4 target. All other AOE skills in the game hits all within the radius my friend.

Also lets be honest on anything where it actually matters (IE: Coil. FCoB specifically) you almost never have to worry about the bane limiter. The only current turn which might cap it is T13 when the first Sins spawn, and thats only if your group somehow couldnt burn down a single gust.

The only thing that would affect is Dungeons. Basically uncapping bane, atleast at the moment is totally not needed. It would also make the ability a bit too strong.