Your opinion might be more credible if you knew how to spell "divisive."
Context depends. Chaplains are used in multiple settings. Sometimes they wear their pastor hat; other days they're counselors; other times, their job is to represent the lowest common denominator. It's not divisive for a Chaplain to pray in the name of Jesus at a specifically Christian service. It is divisive for him to do so at a change of command ceremony that every soldier must attend.
Why?
Does the military chain of command have higher authority than our Lord and Savior Christ Jesus?
If one isn’t praying to God the Father through faith in the Son, exactly how is God the Father going to hear that prayer and remain perfectly just and righteous?