This ability's tooltip reads as follows: "Create a rune of celestial protection. While active, the rune grants you Major Resolve and Major Ward, increasing your Physical Resistance and Spell Resistance by 5280. Standing within the rune increases Physical Resistance and Spell Resistance granted by 50%."
Now, what this means, and was indeed demonstrated a couple of patches ago, is that whether your character's in the rune area or not, you gain the base resistances at a minimum, and the bonus resistance if you were inside the circle.
What I've seen today is that Rune Focus now only offers any resistance (base and bonus) while inside the rune area, in contrast to the tooltip info, and no word of this change was in any patch notes. Is this a bug, or a stealth change?