Right, kind of. We discovered that Conviction (which can give up to a 9% healing bonus) was broken. It affected paladin self heals, but not healing other targets. Since we think that paladin healing throughput is in an overall good place we didn't want a 9% bonus sticking around. So we fixed Conviction and reduced the Holy passive, Walk in the Light, from 15% to 10%. Which actually does end up with a net 4% gain overall, assuming Conviction has near 100% uptime, which isn't too unreasonable.

Since it was applied in a hotfix the Walk in the Light tooltip won't be updated until 4.0.6.