That's my rough understanding.
My background is very much in commercial software rather that FOSS. Could someone explain why Debian ships something as niche as this with it in the first place? Isn't that the equivalent of Windows shipping with, say, Sage Accounting in just in case someone wants to use that?
This approach works very well, but it has a few shortcomings, including the fact that sometimes, Debian ships a somewhat outdated version of a package, which may contain bugs. Some bug fixes, such as security updates, are pushed to users, but "non-critical" bug fixes need to wait.
(Not that Debian's unique in that. FreeBSD's release branches and Red Hat Enterprise Linux use a similar model.)
I mean, it still makes sense to give it a freeze exception so they don't ship a seriously buggy version with a stable release, but I would also hope that no doctor is relying exclusively on whatever version happens to come with a particular Debian stable release, without checking on the status of that version.
Here (http://bugs.debian.org/release-critical/) is a handy graph showing Debian's trends for the number of open RC bugs.