I'm amazed at the amount of hate I saw for this story in the first half of this thread. For me it was a solid B+ kind of story. It didn't blow me away, but it was better than plenty of other stories, even on our beloved Escape Pod. I'll take this sort of "boring" story over "Next Time, Scales" and the like any day.
My own brother died a couple years ago and the need to just run off and have some insane quest for her sister's memory seemed very real. I read this one when it was in Asimov's but I'm glad I listened to it here, those last lines hit me much harder in audio than they do in print. I love the protagonist's finding a purpose for her life that is different from her sister's, but informed by it. Perhaps it wasn't as obvious as it could have been at a longer length, but the trip around water-starved India provided a much needed catharsis for the protagonist. She learned to cope with her sister's death and decided upon the path that the rest of her life will presumably take. I don't see how that is boring at all, and with all the haunting descriptions of the landscape, I'm not sure what there was to hate so much.