Simply saying "this is uncertain information" does not absolve the use of "truth" and "prove" without qualifiers as the text does. Except for that mention the

Simply saying "this is uncertain information" does not absolve the use of "truth" and "prove" without qualifiers as the text does. Except for that mention the text does not act like there are any uncertainty, hence the mention is a simple and dishonest cover-your-ass.