I mean they were pretty much directly saying they don't like RZA/Wu sounding records and that they don't think that Apollo Kids or Supreme Clientele sound like Wu production and thus why they like it. Seems like a pretty sound argument to me since they specified two records that you seem to agree don't sound very Wu like.
That wasn't the argument, as I understand it. It was that Ghostface somehow had different sounding beats from other Wu Tang members.