If you find Perl::Critic useful in general, and you want to continue to use it, keep in mind that it is highly configurable. You can disable policies that you disagree with using the .perlcriticrc file, for example.

I think the policy in question is Perl::Critic::Policy::InputOutput::RequireBriefOpen. The POD describes the reason for the policy, some alternative coding styles and how to configure it differently. You can decide whether it applies to your case or not.