I think it would help the reader to know what sort of quantitative performance would qualify as good enough.  In this "good enough" smoothing, there is a factor of 3 difference between the peaks and troughs.  Is a factor of 5 also good enough? A factor of 10?  Without a quantitative reference, it's difficult to motivate the need for a more sophisticated method.  Perhaps you can define what "good enough" means in the introduction.