It has robbed nothing, the poster has a massively illogical idea that somehow Worgen being added lessened the druid class by “changing” lore to fit them, was was said in one of the first couple posts they made here, when I first said arguing with them is pointless because nothing is going to change their irrational hatred of the race, and nothing of their said reason is based in any logic or actual fact.
Their entire position can be boiled down to ‘change is bad, anything that is changed from a vanilla standpoint is corrupting the lore, everything should should be how it was originally’
But their post explaining the supposed reason/“being robbed”, particularly the last bit here:
https://us.forums.blizzard.com/en/wow/t/give-worgen-tails/504127/6981
Or more directly:
https://us.forums.blizzard.com/en/wow/t/give-worgen-tails/504127/7024
The complete logical fallacy that more race options for a class = that class loosing/not getting content, that in their mind something would have been added instead, somehow or somewhere