From a portion of his help file, it looks like if you have more than a few PKs, you are actively failing at his religion.
Despite the passive nature found in the majority of his followers, there
are times when they will have their hand forced to defend themselves or
their beliefs. It is in these situations where the followers are truly
tested, and only the greatest of them are able to hold true to their ideals
of mercy and stay their hand instead of pursuing the fatal strike. The
notion of a grudge or ill-will is also foreign to the followers of
Avderlain and they will often come to the aid of the very man who tried to
strike them down but moments prior.
While PKs are situational, it's very easy for an Imm to use PK as a gauge for what your char is doing.
Unless there are chars actively running up to you, attacking you, then running off and mob dying immediately after, it's pretty easy to avoid getting a PK. You might get a lot of assists, but it's pretty easy to avoid landing KBs.