An inscription has reportedly been deciphered, thought to have been written in the 10th century BC, found in Jerusalem.
The explanation seems credible to me. I will be interested in learning whether other scholars agree with the proposed meaning.
Why would it be so difficult to decipher? Very possibly, because the appearance of the alphabetic letters varied over the centuries.
Hebrew can be a difficult language, anyway, because of the lack of vowels. For several centuries, now, Hebrew Bibles have had vowel pointing, a system of marks intended to indicate the vowels which the reader is to supply in his pronunciation.
I have to admit to finding it a bit funny, when people regard such things as definitive proof of their theories.
As with anything, of this nature, it's all down to "Interpretation".
Arabic doesn't have vowels apart from the alif which is why it is difficult to discern meaning at first reading. There are more consonants but letters are written differently depending on whether they appear at the start, middle or end of a word which all leads to confusion for the newcomer to the language. I was told that that the Iraqi accent is closest to the accent that would have been used at the time of the prophet, evidenced by the way the Qur'an is said aloud.