There is no wrong information. As I mentioned, cast Miasma if "free". It's a 2.4s cast. Compared to BLM cast times, this is great.

For me, I always put BIO2, BIO, Miasma1/2 on the target I want to burn down. And MIASMA2/BIO is most likely on everyone else moving around on the map, so damage is everywhere with the healer under pressure.

Garuda can be LOSed, Ifrit can be kited, but no one can stay mobile an entire game, esp. for healers/casters.

There are 2 bursts - the one I mentioned and Ruin1>Ruin2>Fester. All 3 can be cast within 4s since Fester is off global cooldown. That is also another 1K combo without crit. Even with 2 dots, 800 is a respectable number with Ruin2>Fester.

Finally, Swiftcast 20s BIND is very powerful in combination with sleep with BLM.

I am not saying nerf SMN, but right now SMN is clearly top of the pack. Maybe they may need to remove swiftcast off of cross class, although I can imagine angry mobs on the street if they do so.