If you click through to the language that drew her attention on Google "... cochlea has a low success rate with these people...", you would see that in context, it is not a damning report that someone is trying hide, as she suggests. It is a note that some patients are not eligible for CIs because it is not successful unless there's a healthy nerve. See how she has
snipped the bold part from wikipedia, without the surrounding context:
"There are strict protocols in choosing candidates to avoid risks and disadvantages. A battery of tests is performed to make the decision of candidacy easier. For example, some patients suffer from deafness medial to the cochlea - typically acoustic neuromas. Implantation into the
cochlea has a low success rate with these people, as the artificial signal does not have a healthy nerve to travel along.
With careful selection of candidates, the risks of implantation are minimized."