Well, I think it's more useful to put them in two boxes than to put them in one. Whenever you put people (or books) in boxes, you're bound to do some injury to some of the many that are harder to categorise, more nuanced etc. but that doesn't necessarily make the categorisation useless.
I certainly have read critics in the former camp. I've linked to a couple in my original piece, Leo Grin and Tom Simon, and I've read others with similar opinions. I don't think I said they were calling for a return to anything per se but the impression they give me is that they don't want to move on very far. It's all been downhill since Tolkien and Howard, doncha know...
That's not an opinion I put too much stock in. After all, it's really all been downhill since
The Iliad and
Odyssey.
But in all seriousness, I guess I can see how someone who feels strongly about that stuff might also feel left out by most modern fantasy, but then there are traditional fantasies still being written and published. Michael Sullivan's series fits that bill, and there are elements of traditional fantasy in Saladin Ahmed's writing as well. (Of course Ahmed's takes place outside pseudo-Europe and both authors' work also contain elements of modern or "gritty" fantasy.)
That said, I don't think a critical argument about violence in modern fantasy necessarily entails nostalgia for the bygone days of clear moralities, fulfillable prophesies and reassuring notions of "good" winning out over "evil."
...and yes, while two boxes are better than one, perhaps no boxes are better than two? I'm not trying to be nitpicky here, but I feel as if you might be setting up a false dichotomy. And though of course you were not responding to me or commenting on my views when you set it up, I still feel as if my own views fit awkwardly into that dichotomy.
I am a fan of gritty fantasy. Many of my favorite fantasy novels of the past two decades count as gritty. Like you, I think grit can be a useful mechanism for storytelling. In a past life, I studied epic poetry and early prose, much of which is extremely gritty, so I can also see clear cultural worth to the gritty approach.
Yet I also see problems with the proliferation of a sort of "sensationalistic" or "minimal purpose" application of grit in fantasy fiction. I do feel as if a lot of gritty fantasy suffers from the problems Foz Meadows mentions, though I also don't think it necessarily has to. And while I do perceive an overabundance of "sensationalistic" or "minimal purpose" grit, I also think there are plenty of judicious and intellectually/artistically justified applications of it as well.
Of course, I understand full-well that the line between "sufficient purpose" and "minimal purpose" is subjective and in many respects in the eye of the beholder, but I also believe strongly in the power of reasoned argument, and value attempts to lay out a systematic argument--as both you and Foz Meadows do quite well. For me, the distinction in any given work of fiction is qualitative rather than quantitative--in the sense of "do the benefits of this approach or the application of this approach outweigh the costs, as I perceive them after doing some critical thinking?" Earlier in this thread, Brian described
Best Served Cold as "arguably a stunning commentary on the pointlessness of violence." That kind of thing, to me, counts as a judicious use of grit as a tool.
I suspect that most people commenting on "grit" in a critical way, most certainly in this thread but also generally, have similarly nuanced views of it--though of course not necessarily nuanced in the same way.