You can not sell gold to Blizzard
Edit: I stand corrected, you can purchase tokens and turn them into game time, but I didn’t know they could be turned into $15 battle net balance. This mount does, indeed, cost less gold than the original Brutosaur (or did before token prices skyrocketed)
They are capable of it, but I don’t really see why they would. Making the tokens cost more gold would mean less people willing to buy them on the AH and therefore less people selling tokens. I think the prices have just exploded because of the mount releasing. As someone else mentioned on here, I believe Blizzard just sets a minimum price for tokens.