I can't make heads or tails of this. DDD feels like a truism. Of course parts of the software system should be modelled after the business system. What am I

I can't make heads or tails of this. DDD feels like a truism. Of course parts of the software system should be modelled after the business system. What am I missing? Who are the people not doing this and still succeeding? I'm an "event junkie" btw.