There can be issues with a line-commutated inverter or asynchronous generation (wind-farms might have both) if the fault level is too low (synchronous plant too small or too distant). More recent research has shown the benefits of adding grid support (reactive power control, fault response) to the control system of renewable generation.
In future I would expect renewable and storage elements to provide black-start frequency reference.
In future I would expect renewable and storage elements to provide black-start frequency reference.