Its more decentralized then Bitcoin Core, with using the equihash algo. The common miners with their GPU are taking back control. Not with BTC who's been monopolyzed by ASIC farms.
Let's take a look at that, shall we? This is Ethereum (ETHash, a GPU algo):
2 pools share 52,4% of the global hash power, 3 pools share 62%, 4 pools share 71,3%
This is Bitcoin (SHA256D, we know that one):
2 pools share 33,3% of the global hash power, 3 pools share 45,7%, 4 pools share 57,4%
You need 4 pools on BTC right now to cross 50%, you only need 2 pools on ETH.
Tell me again, how are GPU mining coins more decentralized?