Unclear why summoned Pirate leader is now doing insane damage

Did you not fill your usual operations this time around?

We never get all the operations filled and as I said I can usually do it no issues and have even been able to auto it.

I failed for the first time ever on it, this time.  I had an awful rng though and my GI got stunned twice.  Between the 2 stuns I elected not to heal with 7th due to GI going next and I didn't want remove a stack of purge.  However, he got stunned for the second time and that's all she wrote.

Although the pirate was present. I put it down to changing the mods slightly and having 4 tenacity mods instead of the usual 5!  😁

There were no changes to either Marrok or the TB3 operation in the last few months.