Coupling is only implicit if you use a dynamically typed language. Also, in languages with UFCS func(obj, something, else) can be expressed as obj.func(somethi

Coupling is only implicit if you use a dynamically typed language. Also, in languages with UFCS func(obj, something, else) can be expressed as obj.func(something, else). The calling syntax can thus remain the same even without defining the function within some arbitrary object.