All the fud and nonsense aside, perl's biggest issue in large environments is deployment. In addition to any setup the app itself might need, you need to make sure you've got a working perl of the appropriate vintage as well as all the modules you need to make your app work, which can be non-trivial to do.

Perl code sometimes runs afoul of licensing issues as well, since to be truly safe from license contamination arguably you need to distribute your app separately from any libraries and modules with incompatible licenses, though licensing is a separate issue entirely.

I hope, with the exception of the license issue, to make this better with Parrot.