Yes, except there's a bit of a difference between a talent-tree (which could be interpreted as being disciplines within the wizardly arts) and what we have on that article, which specifically mentions Wizards of the <whatever>. Now, maybe I'm reading too much into this, but this implies a number of colleges, societies, cabals or guilds which organise and regulate magic (like the Traditions of M:tA). I argue that, in a Points of Light setting, wizards should be usually loners, teaching their craft in a one-on-one master/apprentice relationship. And removing that organisation is harder than just changing their names around... :\