Consider actively inspecting each "requirement" for relative importance.

For example, I recently read a job posting where "experience with subdomains" was sandwiched between "required 2 years exp with rails" and "postgresql". For people who haven't touched domain configuration, working with subdomains and basic DNS configurations is an absolutely trivial task.

So perhaps the missing requirement is actually something that could be picked up in a matter of minutes and isn't a deal breaker nor relatively important.

Regardless, you should apply.