First of all, please stop making sweeping generalizations, "people prefer", "almost everyone", etc... Without proper citations, these claims are meaningless. S

First of all, please stop making sweeping generalizations, "people prefer", "almost everyone", etc... Without proper citations, these claims are meaningless. Second, more concise doesn't always mean better, let alone more readable or more maintainable. It's often the opposite. Third, functional programming is usually preferred because of aspects such as composition or immutability, not conciseness. Fourth, rewrites of an existing code base usually leads to shorter code bases, simply because of the acquired knowledge, regardless of the language or the techniques.