Well, since he's more the Bob of Orgrimmar than an acting Warchief I'd say him using the throne isn't as dangerous as it otherwise could be. Tbh they might as well re-decorate Grommash Hold into a council chamber without a throne, since none of them is elected above the rest.
Unless Blizz does away with the whole council nonsense once the Lightbound inquisition enters Lordaeron. *fingers crossed*