Originally Posted by
fangless
Random baseless statements.
T6 was done over two tiers, they added more "tier" items in Sunwell to go with the others. They didn't add more set bonuses along the way, but you could wear 8/8 T6 if you wanted, for the stats, and do so without the content being outdated.
As far as why we went away from T3 larger set bonuses, I don't see why. If someone wants 8/8, great, if someone wants 4/8 because the offset pieces are awesome, great. More choices.
Every tier has the first chunk of bosses drop no tier anyhow, there's room on the loot tables to do so.