[Arcway] Spiders too much

[garganatla]

WoW Freakz link: Hi there. I was looking some encha shaman video from Cayna from Method when he was 7.1.5 so I can compare his dmg to mine and I explore something interesting about Arcway.

Bug description: When you came to fight adds before Naltira ( the spider boss ) you first kill little adds who explodes when dies, and after that from roof comes other spiders, bigger but don't explode, they root you. On Freakz, those adds with root spell, came in 3 waves from roof, on this video came only 1 wave. Is this a some kind of bug or it's some fix which was implemented at the end of the 7.1.5 so I watched an very old video of 7.1.5? Thanks in advance.

Proof: https://youtube.com/watch?v=UJOP3u3pNbY:

Look at the 16:18.