Well I can tell you now those letting DoTs drop is a HUGE loss, and I'm not someone to break a sweat over just some tiny or piddly little 1% damage here...

But keep in mind.... my Bio and Miasma in conjunction are doing between 6,000-7,000 damage per tick at 80th and a iLvl 470... my Ifrit is doing 4200-4600 per swing.

That's a good 10,000 damage ticking underneath everything.
While an Ahk Morn may be around 30,000... those DoTs dropping make your Ahk Morn go from doing 37,000 damage to doing 30,000 damage. They are just that significant. Its wayyyy more than some piddly little 1% some of these Savage players argue over.

Not to mention DoT + Egi for 10,000 damage per tick.... running underneath your Ruin 3s.

That is why SMN is so hard to play... its all about stacking and maintaining that damage throughout. While dodging mechanics and managing all those timers to keep that persistent Damage always going. .

Keep in mind here... for perspective.... BLMs are popping off 40,000+ damage Fire 4's under Enochian and I've seen them do a good 70,000 with Xenoglosssy. And they will just sit there and roll off Fire 4s one after another after another.

SMN is not going to compete with that without stacking their entire load and maintaining it.