I'm not sure this is much different from any other accelerator. I've heard that this experience is pretty similar for TechStars or YC rejections. That said, you could easily contend that as a less established accelerator, they should seem more hungry, but this also runs into the conundrum that as a less established accelerator, they have fewer resources to do this. Even during the program, communication could be a bit haphazard.
It's probably a good suggestion to challenge previous applicants to reapply if they believe they have made significant progress. TechStars did just do this.
Thanks! Hope to catch you around ATL.