One preacher said that if you only ever fed milk to a baby it would be weak and sickly. That is the state of most Christians today. Yet they get very defensive if you try to show them some meat. Now and then I listen to sermons from normal every day churches. It is all milk and a lot of filler that includes nice stories intended to make people feel good about themselves. There is no meat. Meat can be controversial and people do not want to be uncomfortable. The word translated smooth things also means flattery. It goes right along with preachers teaching so that people can feel good about themselves.
“Prophesy not unto us right things, speak unto us smooth things, prophesy deceits”, Isaiah 30:10