I'll assume that you are talking of the Tier 5 and Arena Season 2 sets, because otherwise what you are saying would make no sense.
I think that you misunderstood me. What I say in the Arena Season 2 section is that there are 2 sets for that particular season, one for Destruction and one for Affliction/Demonology. These 2 sets look exactly the same (i.e. both Arena Season 2 sets look the same) and they happen to be bought with the same tokens as the Tier 5 set. I never say that the Tier 5 set looks exactly the same as the Arena Season 2 sets. In fact, I make no comment regarding the similarities between these sets.