From what I've seen of Elementz, as well as heard him say, his mechanics and mechanical knowledge leave something to be desired. His positioning is often weak, he has sub-par synergy with bot lane, etc. and it all shows.
It's almost a meta of its own; the current strong team comps (apparently for scrims as well) is a strong bot lane, feeding them kill after kill to counter the weak early game. They depend on Voyboy and Saint to carry them to endgame or dominate early-mid, and when push comes to shove, it won't be enough.
But who knows? It's all hearsay when they're 18-4 right now.