Comment by gherkinnn
Simple. Your mistake is assuming that these surveys used to gather actual information.
The 30 questions satisfy all of the bikeshedding smoothbrains in the survey-design-committee. The survey itself isn't used to make informed decisions to improve the product, but entirely to justify the manager's impact and thus everybody's bonuses.
Oh, sometimes they are used to change things, and when implemented it seems like everyone is mad and they act shocked because all they see from surveys is people wanted a change.