The people involved are volunteers. The rules for getting access are readily available, and clearly don't include "some random university student": https://www.ukbiobank.ac.uk/about-us/how-we-work/access-to-u...
That being said, I may be as pessmistic as you are: I don't think people right now grasp how standards for deidentification may no longer be enough, and how easy and automated deanonymization changes everything. Unfortunately, cuts to federal science agencies means that I doubt any well-informed guidance will come soon.