It's been a few months, but when I fought it, we had a lot of bodies. If you're going to try and tank the ??? needles damage, you'll need almost a full alliance in range to be safe, just to take damage. After you have the bodies to tank the ??? needles, it's pretty straight forward. Keep people alive, get blue (and red if you want atma), then kill it fast after that.
I haven't tried this, but I did think of an alternate strategy for low-manning that doesn't involve brewing, but does require everyone to have a fanatics powder temp item. You could try with a party of 6, something like mnk, thf, whm, then 2 other DDs and a brd (or a 3rd DD). Make a fanatics powder rotation, each one lasts a minute, so you'd have 6 minutes to get procs and take it down.