With subclassing upon us, we’re likely entering a situation where the Templar class mastery script is never used to full effect, as the Sacred Ground bonus is strictly tied to Restoring Light tree (which will be dropped by any DPS immediately).
In comparison to Arcanist (for example), Crux can benefit all roles, spanning skills lines. Templar’s class script feels far too narrow now unfortunately - perhaps ZoS could explore some other form of parameter which procs the bonus condition?