Of course it's a good thing when someone learning a foreign language tries to use it without fear of making mistakes, but I don't think much of people without sufficient ability producing language learning material of poor quality.
外国語の学習者が間違いを恐れずに学習中の言語を使ってみるのは素晴らしいことですが、十分な実力のない人が間違いを恐れずに質の悪い語学教材を作るのはいかがなものかと思います。