8 hours maintenance is nothing. It is not only to apply patches. Maintenance is for updating server software, apply patches, fix any problem, claer caches/optimize system, restart game servers, test everyone is correct, check backups, etc. Anyone with computer knowledge knows how server works. It is not a single server, it is not a simple computer, it is a complex infrastructure.

It is not just "apply a patch". It is not a desktop windows system. It is far more complex than that.