Atheists: would you tell the spouse of a dying friend that there is no such thing as God or Heaven, when they take comfort in "knowing" where their spouse is "going"?

My husband’s best friend is on hospice. It’s going to happen at any moment. I called his wife today to just check in. She’s pretty emotionally fractured. It’s been a long three years of him battling this cancer. These last two weeks she’s getting very little sleep. On top of that she has relatives of his who are hovering like vultures, dropping hints about what they would like to have of his.

She said she keeps asking God to just please take him. End his suffering.
I said “I remember feeling the same thing about my Mom…and you can’t help but feel guilty that you’re thinking that way.”
She said, “Oh no! I don’t feel guilty! I know where he’s going! And there better be a….(some kind of)...well house!” I’m not sure exactly what she said.
I said, “And a boat! And a barn! And fish!”
She laughed a little and said, “Yes!”
It made me glad that I could make someone smile at a time like this.

However, I’ve heard of some horror stories where some God damned atheists feel some sort of need to inform people who are dying, or their relatives, that there is no such place as heaven. If you’re an atheist would you feel compelled to set the record straight? If so, why?