An outage rarely points to just one technical fault. More often it shows unclear ownership, inconsistent change controls, poor communication between teams, or a service model that hasn't kept up with what the business needs. That's why ITIL certification is a practical question for IT professionals and organisations alike: it deals with how services are designed, delivered, supported and continually improved.
ITIL 5 is a recognised service management framework for environments where cloud platforms, Agile delivery, DevOps practices and enterprise governance all have to coexist. Certification doesn't replace hands-on experience. What it does is give that experience a shared structure, vocabulary and set of practices that teams and suppliers can use together.