What is the scholars' opinion regarding Tahir ibn Ashur's detailed explanation of the stations of prophethood?

Al-Tahir Ibn Ashour mentioned that the states of the Prophet, peace and blessings be upon him, from which a saying or an action originates, are twelve. The first and most important of these is legislation, which is the primary purpose of his mission. The default for the Prophet's actions and sayings is that they are for general legislation, unless there is evidence to the contrary. The differentiation between them relies on contextual clues. Evidence may indicate that a saying is not for legislation, as in the story of pollinating date palms. However, if there is no such indication, the default is legislation. As for his actions, they may be for legislation, or they may be from his natural habits and customs, or they may be specific to him, peace and blessings be upon him.