Does the expiation obligation for shaving the head while in Ihram differ between an intentional shaver, one who erred, or one who had a valid excuse?

Primary text

According to the apparent position of the Madhhab and the view of Al-Shafi'i and similar opinions from Al-Thawri, there is no distinction; the expiation is due upon the intentional shaver, the mistaken shaver, and the one with or without an excuse. The reasoning is that shaving constitutes a destruction (Itlaf), thus making the intent or lack thereof irrelevant, similar to hunting game. Moreover, the obligation of Fidyah was established for one who shaved due to a valid excuse (injury/illness), which serves as a textual indication for its obligation upon others who have excuses, such as someone who shaves for cupping or treating a head wound, and those who cannot control the action, like a sleeper whose hair is pulled out or burned.