I agree with the crux of this reporting, but the writer is wrong about it taking only a few minutes to make the data anonymous. Yes, the survey tool will strip identifying fields, such as the email address and IP address of the respondents, and this part only takes a few minutes.

However, anonymizing data is more than just stripping identifying fields. When a survey has any open-ended text response fields, those all need to be read and potentially retracted for identifying information. This is done by a human and would take a very long time given the number of people who took this survey.

Source: I am an analyst. I use the same survey software that KU uses, and I analyze open-ended survey data in my job.