The movie, in 3 parts, can indeed be somewhat confusing and disconcerting, especially when there is a different cast for each of the 3 parts.
It certainly is a heck of a vehicle to bring forth the ideas and philosophies it contains (No laughing matter there.)
But I agree with Ms. Beer-Eyh in saying that this film needed to be made (esp. now in 2021!) and that " they did a darn good job with what they had." And that's quite admirable and deserving of praise.