"...the posture it describes is one that implies defiance, aggressiveness or confidence, and these emotions have become attached to the phrase."
Simple text files means Grav is trivial to install, and easy to maintain
Grav employs best-in-class technologies such as Twig, Markdown & Yaml
From the ground up, with many plugin hooks, Grav is extremely extensible
A vibrant developer community means 200+ plugins available to download
Grav is an open source project, so you can spend your money on other stuff