The short story Heart of War sheds some light on those first moments in Azeroth. Garrosh was a stranger in a strange land, a brown-skinned orc that had never been touched by demonic corruption cheap wow gold. He was surrounded by those who had, one way or another, been affected by his father's deeds. Yet the opinions of the people of Orgrimmar were as vast and varied as the many, many paths that Hellscream could follow if he so chose. Some embraced him as a reminder that all was not lost, and others ... others thought differently.
One of these was Krenna, an orc that made an appearance in Wrath of the Lich King. Krenna made it very clear that regardless of Grom's final actions, there were still those that were bitter. There were those that were angry, unwilling to look past what Garrosh's father had done, the example he had set that led the orcish race to corruption -- the same corruption that still tainted the skin of every orc child born on Azeroth.
She pointed out the vast city of Orgimmar not as a hallmark to orcish freedom, but something akin to a prison made at Thrall's behest. Krenna was absolutely right -- there were no farms in Durotar, no wealth, no resources. To the north lay Ashenvale, a bounty in all aspects, but Thrall was unwilling to take anything from kaldorei lands. Why would a Warchief supposedly so concerned with his people's welfare ignore that solution?