Over the phone, even “F” and “S” are confusable. The what3words list is too long and has too many uncommon words to be reliably used on phone-calls. And in that

Over the phone, even “F” and “S” are confusable. The what3words list is too long and has too many uncommon words to be reliably used on phone-calls. And in that case, what's even the point?