Despite Jeff's latest SE Blog post, I think story ID questions should still be ok here.
I think there can be good and bad story ID questions, and while the bad ones can fall into the categories Jeff doesn't like, most of the ones I've seen here seem fine - they aren't guessing games and they can help others.
The issue of duplicates is easily solved (not that it seems to be a problem here), if there's a story ID question for a particular tale, and someone comes along later and posts a sufficiently different description of the same story, just edit the original post to include the new description and close the new question as a dup. That said, when you're talking about a story, there are unlikely to be multiple non-overlapping ways of relating the main features.
Jeff's comment about this type of question being unfair seems to be just another way of saying they're guessing games. Again, for story ID, most of the ones I've noticed give reasonable detail and the ones that don't give enough seem to get zero answers and so will be autodeleted at some point.
Basically, I think story ID questions should still be allowed here, but there should continue to be diligence in nuking bad story ID questions. Not just because they're story ID questions, but because they're bad story ID questions.