I have watched dywrins series too, and it helped me get a lot better at the game. I think the reason that dywrin plays passively in his Basics series is because he wants to do "basic stuff" like taking big points and shape points, and also not killing groups unless he has too. I think he does this and not really attack weak groups because he knows they can be attacked later on. However, most dan level players are kind of out of touch with how kyu level players think, which unfortunately will make them make mistakes while teaching. Like dwyrin playing passively on his basics series, when he should be attacking weak groups. Sometimes we don't know if a weak group can be attacked for profit later on, even if he knows it.
P.S. Also, dwyrin has a new series(I guess you could call it back to basics season two) where he teaches us about fighting.
P.P.S. I also recommend his series to anyone reading his post, it is absolutely amazing for kyu players, and one of the best teaching series on the internet.