I was prepared to argue this point my point, but by the time I got to the end what this really came down to was tools. Perl does not have a lot of good tools (IDE's if you will) to do the work for you.
I have used several code management tools for Java, and VB and .NET. The common theme is that you cannot write your programs WITHOUT the tools! It is a crutch that these programmers rely on because they cannot program without one.
Think about it, can you really quickly and effectively write or VB or .NET code without using Visual Studio? How about writing a Java program without Eclipse or some other Java IDE? The IDEs hide so many complications from the programmer, they would not even know what to do without one! The language is designed to keep the programmer from thinking, being creative and you pervert this into good coding conventions( or GW Bush thinking, to protect our freedoms we have to give them up).
A Perl programmer can write a program with Notepad, VIM or EMACS or an IDE like Komodo, you are not crippled as a programmer without an IDE. Perl does hide somethings from you, but it does not take it away, which is what you seem to advocating.