Why using the Controller and FormProvider instead of using the Ref and register?

[matheusrocha89]

Checking the documentation of react-hook-form and the examples here on the shadcn-ui, the Form component uses the FormProvider from react-hook-form and the Controlled components example. But most of the components of the Shadcn-ui forward the ref.
Was there any reason not to use the examples using the register from react-hook-form and choose the controlled components approach?

[mahendraAtMave]

same question