I feel a bit embarrassed for Piccoult, I just want to turn away and pretend the whole thing never happened.
I'm not a famous person, but as a woman, even I know that it never pays to raise concerns about gender bias, unless it is of the 'he grabbed my ass' kind. Don't get me wrong – I stand up for what I believe in, but why would I willingly bang my head against a brick wall? It requires months of research to argue a case like this. You need to have all your data, all your numbers, ready to pull out of your ass. And who has the time?
Besides, even then, no man will concede to your point because it is offensive to him. Most of the time biases are not instituted purposely. And most women (atleast in North America and the vast majority of the rest of the world too) will be offended as well, because they don't see it. People think the sexes are equal in today's world.
This whole thing is an uphill battle because it is a battle built into our society because of our history and the biology of the sexes. (oh crap, there I go)
One thing I notice over and over again (please note: in my own life, not necessarily out in the world at large) is that I am (and most of my female friends are) interested in many different genres of books and movies – horror, mystery, thriller, action, romance, chic flick/lit, etc. But most of the men in my life are not interested in those genres that focus more on emotions, romance, and typically have a heavier cast of female characters.
Often I watch movies and read books with no female characters. Do I feel excluded? Well, yes, but that's because I don't see a valid reason those books/movies are made like that. (Perhaps it is just to portray the world as it is, but I would find it much more admirable if writers tried to portray the world as it could/should be. Why not? Then maybe one day it will be.)
IMO this discussion is about so much more than Piccoult and the NYT and I would be very surprised if any consensus is actually found. For the record, I am willing to say that I think Piccoult is wrong to have acted like she did, and I don't know enough to say anything meaningful about the behaviour of the NYT.