I'm pretty sure this was partly done to counter the fact that many of Tron were moving into proxy account ie a fear of buying to sabotage Hive.
The list was a pure bot with no human input hence why the list is so harsh and ignore people who voted but support Hive as well.
That actually might be the one valid point to all of this. It all feels very rushed and not thought through.
The question is where to draw the line. The biggest problem I see was the big ninja mined steemit inc stake which should prevent the sabotage of hive if it was removed. Banning these extra accounts just feels like an attempt to avoid selling pressure early on at a way too high cost.