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

[Romsca]

Vi, the concern I have is that currently enkindle will always be buffed by rouse since rouse has a 1 minute cooldown. If summoner pops spur when it is ready then it wouldn't up in time for enkindle. At a two minute cooldown, enkindle will always be ready with rouse and spur.

Ifrit was getting 500-600 initial with dot ticks 51-76 and 950-1000 with 96-101 ticks after rouse and spur on a single target. I have 75 WD with 533 int.
Did one test with buffed Garuda and I crit with 1971 on the hit.

Again, I am just saying I feel hesitant about a 2 minute cooldown. I agree there should be a boost in damage but I don't want a sudden spike making us too strong. All I know 2 minutes could be exactly what it should be.