Yep. It helps me to think of church people as stuck in the "denial", "bargaining", or "anger" steps of the bereavement process when encountering areas where mourning is a requirement. While we normally associate "mourning with those that mourn" as specifically related to those that are encountering death - I think the processes associated with grieving are a lot more universal. The only consistent constant I have seen with mourning is when a reaction is produced at a time that an expectation did not match reality. We go through "mourning" when we don't get accepted by the school we really wanted to go to, when the super-cute guy [or girl] we were dating turns out to be a jerk not worthy of our time, when we experience something with our children that we did not see coming and had no chance to prepare for.
So something that I have learned about people is that it is my part to "mourn" with them - to meet them where they are in the process and hopefully lead/distract/plant seeds/show compassion/love them/introduce them to a better place in the mourning process. The final step of acceptance is always the place for that individual - but I can be there to listen to them vent their anger, to gently provide an alternative perspective that pushes them past denial (or not judge them for being in denial even if I can see that is what they are doing), hug them in their depression (and provide pragmatic tugs to pull them into a better place), encourage them to use the bargaining step as leverage for getting to a place of more effective thinking by setting up/replacing protocols of behavior and thinking. I can be empathetic and supportive when a person is in shock.
Maybe someday I will have the courage when teaching Mosiah 18 to bring these stages of grief into the discussion.