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

[loreleidiangelo]

Another idea for the expansion is to make SMN a semi-support job like the Bard, giving them pets that provide utility like party MP/TP regen, DPS buffs, etc. In this way, their lower damage to BLM can be justified, and Bards would no longer be a requirement in every raid comp.

I suggested this exact same thing on Lavieh's huge SMN thread a while back, incidentally. We're doing about as much DPS as a BRD anyway; why not give us something similar to their utility? To people who enjoy SMN as a strict DPS job, though, a retooling like that would possibly make them main something else. I'm for it, though.