There was two competing viewpoints of OO. A object is nothing more than an animated data structure, and the opposing view saw objects as behaviors and you didn't map them explicitly to your data model.
As most people viewed object's as simple extension over the data, it's not surprising to see most developer opt out for more basic form of data representation and that doesn't need object's at all.
As most people viewed object's as simple extension over the data, it's not surprising to see most developer opt out for more basic form of data representation and that doesn't need object's at all.