I think you're being a bit harsh TBH.The Sixers have also been carried hard by Philippe this year though. Their bowlers are garbage and before Henriques came back their middle order was pretty suspect as well. If their list is the best in the league then cricket is well and truly f*cked in Australia.
I think the top 3 sides this year are all pretty good.
It's a domestic comp and hardly any of the test players are available.