Yes it does, but not for everything, and there's certainly less new work being done with it. It's impressive that much of that code just works and no one has touched it in a long time. A lot of breakage in that space is due to new people with no perl familiarity coming in and making changes--the pool of people that understand how that stuff works is shrinking.

(Source: This morning I worked on some perl/mason at Amazon and my team owns many thousands of lines of it).