We just retried this one for a few other members. My hit rate which has been 90~95% on him in the past was down to ~20%. None of our melee could hit him at all. Either his evasion has become sky high or the general change to attributes to nerf 2H jobs a little also effects 1H jobs. This was as NIN. After 15m of plugging away he was still at around 95%. In the past, 15m was enough to kill him.
The other NIN and the DRK also reported ultra low hit rates, but I don't have parse data for them -- I filter all buy my own data.
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