Here are some related statements on that issue, culled from the report (noting that the researchers lumped object-oriented languages among procedural languages): It does appear that disallowing type ...

While it might be acceptable to mutate a member variable in procedural or object-oriented programming, in functional programming it's frowned upon to change the state of a variable outside the scope ...

Functional programming is sometimes defined in opposition to object-oriented programming (OOP) and procedural programming. That is misleading as these approaches are not mutually exclusive and ...

“Object-Oriented Programming (OOP) has been created with one goal in mind -- to manage the complexity of procedural codebases. In other words, it was supposed to improve code organisation ...