Amahric, Ge'ez and "Ethiopic" are all the same alphabets, am I missing something? Ge'ez encompasses all of them including Tigrinya. Why not just have an expande

Amahric, Ge'ez and "Ethiopic" are all the same alphabets, am I missing something? Ge'ez encompasses all of them including Tigrinya. Why not just have an expanded Ge'ez library?