Judging by fflogs phoenix and bahamut are like 8-9% of SMN damage each... how about I dunno... take all that 70% of other damage and put it into demi-summons? Just a thought...
Regarding aoe dps... It does feel weird when you think how SMN aoe works compared to other classes aoe... But personally I didn't see people out dpsing me in dungeons except BLMs
Do we even know it's calculating proper damage for SMN?