I think this is spot on, and to add to it, tech allows scaling in other concerning ways besides just this example IMO. A different comment mentioned you can't restrict bans to behavior on property, because then a venue can't refuse entry to someone they saw behaving disorderly across the street. The problem with introducing tech to this decision is the temporal and spatial scale it can expand to though. It becomes theoretically feasible to ban someone from one venue because they were garden variety disorderly drunk 6 months ago at a venue across town.
Certainly this is more of a grey area than the guilt by association scaling you mention, but I think there is a point at which it becomes scary. People grow over time, people behave differently in different environments with different peers, etc. People also just make impulsive mistakes from time to time, especially when under stress. To what extent should that information be usable at scale for years of a person's life?
I'm for sure not legally qualified to know how or where to draw the line. But it's a problem we haven't grappled with much yet, because in the past there was no realistic infrastructure for it as you say. A ban list had to stay at reasonable length and further only had a more restricted set of info available to it.
Now ban criteria can include not only a longer list of "offenses" which may be much more minor, but also can cover offenses that occured at more possible places over a longer duration. Hopefully business interests will prevent much of this from being realized, but there needs to be a regulatory discussion to get in front of this too.