Just because the issues you have encountered have been solved by the blacklist does not mean all issues can be. I am cautiously optimistic that the GM team will use their best judgement in enforcing these policies. Just because something can be bannable, does not mean the GMs will ban anyone who could possibly be counted as doing that infraction.

In my time in the XIV community, I've encountered people parking large mounts on other players trying to run community events. I've encountered stalkers using the player search to follow their victims when they're in the open world. I've encountered MANY bots who use the same pathing to go to nodes and regularly pull 24+ hour gathering sprees, but who could not be detected by the Special Task Force tooling. I've encountered griefers approaching housing plots that have the timer on and spamming flashy abilities or dissonant bard performances to disrupt the people trying for the plot. Blacklisting these players would not prevent their harassment. But with the policy changes, the GMs would be able to use their best judgement to enforce consequences in these cases.

While the wording has potential for abuse by corrupt authorities, I have trust in the FFXIV GM team that they will act appropriately and continue to improve.