It's hard to say really isn't it since all are different and not expected to follow any set activities.
And since I WOULD be meeting with believers that command wouldn't be violated. I just looked back at the passage you used. It refers to believers meeting regularly. It does not state how regularly those meetings should be. So critising someone depite the still attending regularly sounds odd.
I'd say it was an extremely basic one and that it misses a lot of the more negative aspects to make it palatable. I think when you get to 'the wrongs that we've done' and start listing them is where you'd likely start losing the hold on the child. The basic positive belief may sell them on it till then though.
I can't rememebr anything about the class i attended if i'm honest. The teacher wasn't the best and I think it just... left me as soon as it was done.