there have been people had bans overturned if they were incorrectly placed, but not for using network tools

Bungies latest stance is that they don't issue restrictions for it [i]at the current moment[/i] but they can and will if it causes problems with Destiny 2s matchmaking. [quote]BNGSecurity We are currently investigating this matter. Players who run these kinds of scripts run the risk of facing a temporary restriction or even a permanent ban in Destiny 2, as outlined in our Bungie Account Restrictions and Banning Policy here. UPDATE 1/31/2019: After internal discussion, we are not able to call this type of script "supported". Due to the way that our systems handle matchmaking and connectivity it is possible for this type of script to negatively impact systems that other players interact with. As such, while we do not currently issue restrictions for this behavior, we cannot guarantee that we won't begin issuing restrictions in the future. Players should be aware that using these types of scripts is done so at the player's own risk. UPDATE 10/27/2022: There has been no change in our stance on this policy. As detailed above, players using scripts that modify or block network traffic do so at their own risk. [/quote]https://www.bungie.net/en/Forums/Post/254739079