Iksar Shaman can't use JBB! Reroll?

[Solb]

Is not being able to use a JBB that groundbreaking? Obviously people function without it, as there are plenty of Iksar Shaman. Just curious what is so great about one item that actually dictates that some people avoid a certain race because it cannot use that item. I began an Iksar Shaman and have been told by more than one player this is a big deal. What do you guys think?