Mobs behave nothing like flocks of birds as this article would like you to believe. Even the author had to admit it at the end of the article.

#Murmuration is the result of birds blindly following a few simple #rules without any #leader, obvious #target, or "higher" #purpose, much like in #JConway's "#GameOfLife".

On the other side, there is nothing "spontaneous" in mobs. You can always identify the lead instigator, the target and it is pretty obvious what they want.

https://www.noemamag.com/how-online-mobs-act-like-flocks-of-birds/