What gave you that impression from the article?  What I gleaned was she was using her association with APD to fund raise off her website, social media, etc. and wasn't keeping private issues private so rightly APD severed their relationship with her.  I didn't read anything that she was proselytizing/preaching to the men and women of the APD. Did I miss something? Chaplains are typically associated with a church, whether that be a muslim, jewish, satanic, catholic, etc. so what they do outside of their volunteer service to APD is within their rights.