Because they dont have first hand statements, they are just using different israeli sources that independently verified it. Hence the quotes and the “allegedly”.
Contacted by the Guardian, a spokesperson for Israel’s prime minister’s office said: “The questions forwarded to us are replete with many false and unfounded allegations meant to hurt the state of Israel.” Cohen did not respond to a request for comment. Bensouda declined to comment.
Cyrillic is literally greek+glagolitic and it was partly a diplomatic creation of the Eastern Roman Empire(aka Byzantine Empire), in order to bring the slavs culturally closer to them.
Russians have nothing to do with it, other than them claiming they are the continuation of Eastern Roman Empire, something which is kinda laughable but whatever dont let your dreams be dreams.