Amongst other reasons, one of the issues any other cryptocurrency has is that they have known founders and developers, where governments can put pressure. They are at much higher risk, because faces are known. Furthermore, for example in the case of Ethereum, the main motivation for the switch is not the environment or some government bill, but rather the fact that Vitalik and his friends hold a large part of the coins and with PoS that will grant them full control over the network.
Doesn't sound that advanced to me.