I don't think he's just "sharing his experience." He's preaching in listicle format. I'm not addressing Dan Foster as a person since I don't know him. I'm talking about his article that buoys Christian faith by denying that the problem of evil leads inevitably to atheism. You don't show compassion to an article that feels nothing.
Personally, I think his whole publication, "Backyard Church" is disingenuous. The writers there spend most of their time criticizing Christianity, all to steal secular humanism's thunder (since if you think that little of Christianity, you ought to reject the whole religion, not stop short at New Agey, "deconstructed," liberal Christianity).