Blazor - does the guidance to avoid writing to parameters extend to not mutating object state

[georgehemmings]

The Blazor documentation advises:

Our general guidance is not to create components that directly write to their own parameters after the component is rendered for the first time.

For simple immutable types such as int's this is easily understood. How does this advice apply to complex object? I'd guess that the component should not change the reference (point at a different object).

However does this advice extend to not mutating the referenced object at all?

For example the sample below mutates the Person object's Name property. There isn't the traditional overwriting issue here. When the parent redraws the state that child mutated is preserved.

Parent

@page "/parent"
@rendermode InteractiveServer

<EditPerson PersonToEdit="@_person"></EditPerson>

@code {
    private readonly EditPerson.Person _person = new();
}

EditPerson Component

@PersonToEdit.Name

<button @onclick="ChangeName">Change Name</button>

@code {

    public class Person(string name = "Original Name")
    {
        public string Name { get; set; } = name;
    }

    [Parameter]
    public Person PersonToEdit { get; set; }

    private void ChangeName()
    {
        PersonToEdit.Name = "New Name";
    }
}

Thank you!