>>544523804
SMoko does a lot but 500k is really low. I don't know who your other member was so I used the dumb cat who does basically nothing for the team.
If I used SMoko in the first guild boss, I would hit for 53m instead of 41m with Onions.
I would use Oppression instead of Pleasure without SMoko, but if you have no other reason to farm that set then it's fine.
For this SOS boss specifically, SMoko's resonance actually helps more than usual because it removes the vajra shield stacks.
It's one of the reasons why some people use Joker in this fight. Almost all the armor stacks get removed by the end of turn 2.