First, were talking about CLG na not eu, so i assume you no nothing of League esports. What the OP is saying is that CLG na were the first team to use the aggressive play style and that the Korean teams used a variation on that strat and people thought that that was the first time it had been used, when really CLG na imployed a similar strat. If i was unclear in that then sorry, if not then **** you.
1) You assuming I know nothing of league esports is an assumption of itself (misreading CLG.EU for CLG.NA does not necessitate lack of knowledge of LoL esport)
2) Aggressive tower pushing and map control is nothing new
3) Assuming CLG.NA did in fact use the aggressive playstyle before the Korean teams, this says nothing about the playstyle's origin. Hence, it cannot be suggested that either team invented the playstyle without further evidence