"Furthermore, the conclusions drawn by SAIC were based upon a number of assumptions made at the time of the report that may be outdated or incorrect or that may prove to be incorrect in the future. Management’s current assumptions may differ and additional events, risks and uncertainties may cause JBI’s actual results and performance to differ from SAIC conclusions or projections."

A number of assumptions may be incorrect. That's what it said. No explanation or clarification. We don't know if the error makes the numbers reported worse or better. A reasonable assumption is that they are not better or they would not have felt the need to issue that statement.

In any case, 'disavow' is certainly a correct description of what took place in that PR.