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

[scarebearz]

Scarebearz, again, has not really been the most logical of people.

Do you not try and think before saying things?

Your the person complainging about SMN DPS directly after a buff, using pre-buff figures.

We have not yet seen what top tier SMN's are now capable of pushing the class to on FCoB.

SMN may need a further buff, but you have no real idea by how much if at all.

Also what someone else says about BLM DPS being effected by RNG/Procs is true, so a better comparision would be a BLM's adverage numbers on said turn, not just their peeks. RNG may not make a "huge" difference, but there is certainly a noticable variation based on RNG elements.