I think it does. He wants to syntax-check code before examining it for security issues. He'd do that for each phase. It's not an all-at-once syntax check, but it does allow syntax-check-before-running.

I don't :-) They want to check everything - note their use case:

I don't want to start messing with the codebase just to check the debug statement I've added. How do I make perl just check the syntax, and do nothing else?

and that isn't possible in the Perl world.