Well, you can't just read 1 review you know?
Also, you would need to look into the reviewers biases or preferences and see if they are "synced" to yours. There's a bunch of reviews of both cans here and you can see that most definitely agree that the A900x just sounds better. Still, you can't battle out the OPs preferences. I was a bit skeptical myself (I had posted here before... probably the initial pages...) and wanted to try the AKGs, in the end... meh... found more reviews of posters I trust (their tastes/sound signature are similar to mine, etc.) and I opted out.
LOL (bold above made me chuckle!)
And, there you go... you said it, YOUR bias automatically takes the AKG out of the equation... the OP probably didn't mind (or just didn't hear the same inconsistencies/flaws like you did).
Anyway, my next Audio Technica set will probably be the W1000X or W3000Ann just to get a feel for them and their mid-centric goodness
Bye.