I guess it depends on why you consider Michael Moore to be a bad film maker. Quite a few of Michael Moore's critics dislike his films because of his political positions, not because of his film making techniques. If you believe his political positions have no merit, one will disagree with the presentation of them.

Adam Curtis does have political opinions about society. If opinionated films bother you, and particularly ones that lean left or are not decidedly right leaning, it may be worth skipping Adam Curtis' work.