I would not say Tanaka is a bad developer his track record honestly proves otherwise, what I think Tanaka was, was out of touch with the modern era of mmo gamers, that combined with him being rushed to release the product. So in the end we got a product with a complete lack of content, the content we had was not the standard, and it was all incomplete and buggy.

Honestly I blame the higher ups more then Tanaka on the games current condition. Who knows how the game would of been if they game him another year to develop it.