Perhaps you have missed all the posts here on HN where some company or other locks up someone's account without the user being told why and without the possibility of having a human review the ban?
Most are Google but they're not the only guilty party.
>Yes, individuals should not be subject to a decision that is based solely on automated processing (such as algorithms) and that is legally binding or which significantly affects them.
I suppose being banned from Uber can very well be something that significantly affects you, especially if you live in a city where it's the primary form of taxi-like transport.
But indeed, leaving GDPR enforcement to government authorities was a huge mistake. Anyone should be able to sue over GDPR violations impacting them.