CPANdeps now understands META.json files
Because YAML isn't hip and trendy enough, at some point recently the toolchain started using META.json files as well as META.yml. Some foolish module authors only use META.json. Because CPANdeps didn't know about this file, their dependency graphs weren't being generated. Well, now they are. I just now pushed the updated code to the site, and you should start to see dependencies for things like DBIx::Class::Helpers, which has no META.yml.
The reverse dependencies - that is, the list of what modules depend on a particular module - will update over the next few hours.