In my experience, the mess created using OOP is harder to untangle than the mess created using a functional approach. With the latter, it's simpler to replace a different function for any part of the logic, and the data is always just data; whereas with OOP the method is usually tied up with shared state and other functions.
> In my experience, the mess created using OOP is harder to untangle than the mess created using a functional approach.
OP complained about accidental complexity, not subjective takes on how hard it is to refactor code.
Even so, anyone who has any cursory experience with TypeScript projects that follow a functional style can tell you without any doubt whatsoever that functional style is incomparably harder to refactor than any "enterprise-grade" OOP.