Delphi-PRAXiS - Accessing private methods of another class

In older versions of Delphi, it was possible to access private members and private methods of a class simply by defining a class helper for it and accessing these private items in its methods. But that it was so easy to access private members undermined the basic OO principles of information hiding and encapsulation. That is why this loophole (which could be considered a bug) was closed in Delphi 10.1 Berlin. But there was a lot of howling abut this, because it was so easy and so convenient to