Mr.peanutbutter said:
SAO Alicization War Of Underworld doesn't make sense anymore.

First they say that the underworld can only be seen with the STL, and then the bad guys give people from the outside world who all use the Amusphere access to the dark knight accounts.

Anime logic.
(; ̄ェ ̄)
You do know you are talking about fiction? There is no 'Anime logic', there is Anime and then there is logic there is no Anime logic.