My BS call was for "RMAA isn't professional enough" or some such. RMAA is fine for what that guy was posting. Is it a AP system? No. That said casting aspersions on the guys technique then showing that you used it is pretty BS as far as I am concerned.
As far as preferring roll off that's fine, in the Wadia and others it's minimum phase filter which includes phase shift too (if I remember correctly) and it does exactly what Fang says which is make things sound less digital especially on cymbal hits etc where the track was poorly downsampled or sampled in the first place or has clipping.