I feel like we really need to push Plack.

It has plenty of CGI compatibility built in while promoting way better practices for free. People new to perl could easily learn on Plack and then scale up as needed without having to migrate to anything different, while allowing a broad spectrum of deployment options (FastCGI, mod_perl, Starman, etc.) CGI is heavy, old, bloated and really easily replaced by Plack in every sense in my opinion.