The big ape, https://www.wowhead.com/npc=148117/grong did not get angry enough and was defeated and was sent to pester the alliance.
(https://www.infinite-guild.eu/upload/smfpics/bfa/bod/grongmsmall.jpg) (https://www.infinite-guild.eu/upload/smfpics/bfa/bod/grongmbig.jpg)
https://youtu.be/byEXRh9vgCk