That may or may not be true. I know for a certain Happy's style of play coming out of 2015 and into 2016 was a detriment for his whole team, but I'm not certain how he's destroyed an organization.
Most time an organization (say, EnvyUs) completely leave a scene or decline to re-sign a roster is because they either see an opportunity elsewhere to make more money or signing said players/staying in said scene would be expensive to the point of the value or brand recognition not being worth it.
It's very rare for a single player to turn an entire organization on its head. Besides, EnvyUs is an North American Esports organization anyways, with holdings in Dallas for other titles. Moving to North America was an easy call for them, even if I think their current roster is shit.