I don't think so, because it's not that you do anything "illegal" to gain the advantage. For me I just train and normally after a few sessions the game says that players are too tired and if I want to replenish condition, now I just lose connection and then he is on 99% again. Everyone can use it.
It still sucks, I hate something like this. I tried it a bit for fun, but the game is laggy as hell anyways, it's not even fun. I'm scared of people who did it for the last few hours and gained a lot % this way. I wonder why Nordeus don't take the servers down to fix this, the longer it is here, the more gamebreaking it can be.