Oh Jeez, sounds horrible. I will say this about NIN though. I went about a month without playing it and when I played it again... dear lord. I did not remember any combos. I was throwing out all sorts of wrong things. Tried doing Huton. Got Doton on a very mobile boss (doh). Let's do suiton! Crap, I got Huton! I already have Huton on! It's hard to remember on the go when you've been away from it for a bit :P Not to excuse the NIN in your group entirely. He REALLY shoulda been goad'ing and using shade walker and smokescreen. I fear at the thought that maybe they didn't even pick them up *shudder*.
And ironically, I tanked PharosHM yesterday with my FC mates. Murphy's law got me. 1st boss, my controller got warning it was dying (ps4 user here). I hit my marco combo and try to switch it real quick. As I'm switching, I see the 1st corruption is on me T-T. I try to get to a bird or spider in time. It didn't happen. My FC leader was like, "For SHAME!!" to me. Rest went ok (not great, but things were fine) until final boss. Ugh. So I usually deal with both the purple bombs when they come out on the last boss (forgot names). I hit one back, then hit the other back and toward the other one. Keep going till the both are next to each other making it easy to contain. Did this just fine. Then lag. I used CoS to hit both back at the same time. But since my game decided lag. Both went flying toward the grey bombs. Like, smack on top of them. Bombs blow. UGH. Honestly, I didn't realize it was lag at this point. I was just like, "WTF! I swear I hit them in time to be knocked the other way!". FC mates shrug it off and we go to do again. Then I notice it. The lag. Oh god. The lag. Next pull, I saw I did CoS. But my CoS was still up and able to be used. Huh. CoS again. Uh, still available. Oh no. Things freeze up. I try spamming out my combos anyways. A minute goes by with nothing moving. I'm waiting for the game to boot me. Nope. Next thing I know, I see a billion things happening at the speed of light. Ending with a huge explosion and me on the floor. I apologize and tell them sorry for the lag. Ironically, one of my FC mates right after said, "Sorry, I'm not doing great tonight"
"Oh, I mean, yea, I'm lagging too".
xD About 5 minutes go by and I still haven't spawned because of my lag. Eventually the game settled for me and we got through it though. It was a mess, but we all did the thanavian dance in front of the last boss in skimpy gear for a few minutes.