It’ll never be truly equal as long as there’s a fixed order of the letters. The only way to make it fair is to include all the letters (from every writing system, not just the latin because that feels overly eurocentric) and the guarantee true randomness of the order or come up with some system where the order is shifted by one every time it’s mentioned. Also, the original letters must be in the center to begin with (to make them equally distant for RTL or LTR readers), to make up for their historical over exposure.