Most Americans cannot read at a high school level. How many do you think even know what "k-anonymized" means?
A spreadsheet of "cross every variable with every other variable" also does nothing but produce ample fodder for people with zero stats training to conclude that a medicine prescribed for X, causes X.
Most people do not have 20 years education in anything. For an average human, you need several stats classes before you can reliably make good conclusions from data, and reliably understand how and why bad data is flawed. There is not enough time in an average human life for everyone to be meaningfully good at stats.
Not letting experts be experts just literally does not scale.