The question after all this discussion remains - can the IAA afford to dismiss the survey of these pilots. Can they really assume that so many people, not an inconsiderable number by any means, would voice concerns that there is a problem and the IAA stick to the line that there is no problem.
They may not like what they are hearing but failure to act on this would be an error, in my opinion.
Surely someone in government must be interested in investigating why so many employees of one company seem to be voicing concerns.