Apparently something went wrong in this ACT parse. Everything proceeds as normal, and then at around 7 minutes, all activity stops in the replay function for several seconds, and then Vortexer’s HP drops immediately from 50% to 0%. During this time, all the players’ dps skyrockets at the point where the parse freezes. My guess is the parse front-loaded all the damage they did during the freeze. Either way, pretty sure this is incorrect:
https://www.fflogs.com/reports/jcK28zagtpJvDHrW#fight=4&type=damage-done