I'm sorry, I misunderstood.
I simply kept playing by saying no to this specific training. Luckily the game let's you choose what discipline you want training in. And the problem doesn't occur during the actual tournament.
But isn't that exactly what is happening?!? They certainly won't have this just during the new quests, right? Or do you mean they should also patch this in the game for people who won't buy the expansion?