I think Camping is 100% wrong. Jesus did say he would come as a thief in the night, and did not promise his “Beloved” no such exemption.
That being said, the tone of the article is one of the big problems that the Western world faces. They don’t believe anyone “really” believes. They think everyone is running a scam. They think is anyone can make a dime off of religion... well, isn’t that what religion and belief has always been about?
Their website goes into great detail about why the “as a thief in the night” verses don’t apply. ...just as every such end-of-the-world prediction does, and is wrong about.