Incidents like this show how unenforceable GDPR is, and how it's been a net negative for users since its inception. It's idealogical back-patting, toothless when it matters.
After the GDPR every website added an option to export your personal data and to delete your account. Something most were missing at the time. It was an immediate and massive win.
How is this unenforceable? If any EU citizens were hacked they're gonna come down like a ton of bricks on Meta Dublin.