They probably want people to focus more on what they have in common than their differences. And when they do discuss differences, they talk and explain point of view without yelling at you to convert.
Interfaith org encourages dialogue and cooperation between different religions, but what kind of dialogue?
Well since it's "interfaith" that would leave Atheism out of that dialogue.
Maybe finding a commonality in spiritualism... Or as the "$25,000 Pyramid" would group it "Things that need Faith" OR "Things that believe in Magic"
All has Life.