Is this generalized map accurate?
As a generalized map, sure it is accurate enough. Is it realistic? Not really, but that isn't the point of this map. The hypothetical continent shows ideal climates (as stated in the article you link to) as a learning tool. Real world climates are not ideal, nor are continents symmetrical. This continent also conspicuously lacks any large bodies of water on it or mountain ranges, both of which can significantly affect regional climate.