Gimmick banlist. Konami put some extra cards just to make the banlist look huge, while actually the only deck k1lled by this banlist is F2P Invoked Roid. P2W Invoked Elementsaber and Blackwing remain top tier. Feels bad for people who don't invest on Black Whirlwind but still need to go through this box just for Purgatrio alone
Before Aerial Assault Box came out, the only top tier card in Black Whirlwind box is Breaker The Magical Warrior (staple for Spellbook and Ancient Gear deck at the moment). No old players go far through this box except P2W players
It's also a question of whether you want to use an optimized version of that deck or not. If you go through both boxes once, you can still build a decent F2P deck which might struggle in PvP but does well in PvE.