While you are correct on the topic of that video, it is worth pointing out that the other videos the RMT cast have done have all been consistantly well received, in large part because of the things you are pointing out. But because this is less of a 'live' video, it suffers from the scripting issues.
Or in other words, they are normally better than that video, as shown by the fact that this one has received more dislikes than all of the previous ones combined. And even that video is not that bad, it's currently at about 70% likes, not the 50/50, so it's not like this is an overwhelmingly negative response.