The Mac OS X Client's absymal performance is a joke.

[Undrum]

Transgaming also did the wrapper for the Guild Wars 2 client for OSX, and it works flawlessly on my machine.

Same here. Wine wrappers needn't be terrible, but an FPS loss of around 20% is what you should expect, not around 90%. This is just a shoddy job. We'll probably never know how it came to be that way:

• maybe there's something unusual about the way FFXIV is coded (to make it run well on PS3/4) that doesn't map well to Cider;
• maybe Transgaming only received the code they needed late in the day and had to do a rush job;
• maybe they were all too busy preparing for the Nvidia sale to spend much time on FFXIV;
• maybe Transgaming's senior management simply didn't care any more once that part of the business had been sold.

Fundamentally, though, it doesn't matter how it came to be. SE are the ones who sold the product and they are the ones who need to take responsibility for the state it's in. If I were them, I'd have accepted the embarrassment of a delayed Mac release rather than release something sub-standard that will cause long-term harm to their reputation.

Remaining silent on it won't help, either. Hold your hands up, admit you got it wrong and offer people a refund. At least that way you've only lost the money for that transaction, rather than losing a customer forever.