If you needed any more proof that scientists and archeologists in particular are ideologues and zealots holding fast to their beliefs and excommunicating any of their order who stray from the accepted narrative .......... HERE IT IS!
This proves nothing , the one thing that happens in archeology all the time is the dates are always changing especially in the times classed as prehistory. to say that archeologists have an agenda is stupid . No reputable researcher would claim the existence of something that could not be proved .and till we find evidence of an earlier culture, the earliest known date is always classed as the first until proven otherwise archeology is not a hard science it is 30% data and 70% intelligent guesses