There are several modules with little or no recent revisions on them. While I'd like to think that the packages are perfect already, my guess is that many times, that just isn't the case.
I don't know how to say this politely, so I'll just say it: hogwash. Many of my (and I assume others) modules have reached stability naturally. HTML::Pager hasn't be touched in over a year but I use it all the time. Judging a module by the date on the label is just plain bogus.
Now, that said, some modules are basically unmaintained. There should be some way to register this fact publicly and allow either a) a new maintainer to step in or b) to have the module removed from CPAN.