From what I can recall, Volt Strike is better damage than Flaming Crush. You can replace the RUN with another SMN and it would work too. THF runs in with Perfect Dodge and does Provoke and Warcry. Then proceed with spamming the other abilities (e.g. Bully, Collaborator, etc). Larceny after you see the boss using its SP ability.
Also, even if you don't see Benediction, if the wandering moogles happen to wander over to your party, the run is over (Amnesia aura). Trying to run out of their auras kills your attack time. The GEO can try to kill the moogle...
I think the moogles arent a big problem, as the boss itself is quite weak so a RUN can hold it till you see where the mini mogs stop, then just get a better position then zerg.
Benediction normally is a fail for me, as it gets aura regardless of lacerny.
Other problems for me is when he uses bathtub right after smn does convert, and when he uses atramantious libation, terroring everyone.
Because of those problems its quite a lottery if a run will be win or no. Is there anything to do about those?