Let's get rid of the hype: a Google Forms survey with only 78 responses to analyze travel planning habits changes nothing in how I perceive document verification.
This type of data collection, via such a specific tool, introduces an obvious sampling bias, as it mainly attracts profiles already comfortable with digital tools.
Here in Germany, where paper bureaucracy and data protection are paramount, such a method does not represent the diversity of travelers.
A paper form distributed at a post office or town hall, for example, would probably yield very different results regarding who verifies their papers in advance.
A proof more solid is needed to assert that 75% of travelers prepare weeks ahead.