I found the course just focused on the vocabulary in the dialogues. There was no other means to increase your vocabulary or knowledge. I also found that the translation was too exact and you would get it wrong if you did not translate exactly what was in the dialogues.
Reply Thelanguageacademy.nl:
Thank you for your feedback, Carla. We're sorry to see your low rating. Despite that, thanks for pointing out the vocabulary. We are working on extra vocabulary for the Dutch courses so that shouldn't be an issue in the future anymore. Good luck further improving your Dutch! If there's anything we can do, please let us know.