Well it was the first smart contract chain and allowed for dapps and people saw different ways of improving it and now we have NEO, EOS and STEEM and a host of other chains competing with it. The competition is good it allows for more decentralisation and keeps projects pushing to be better. We won't know which will come out the best, they will all probably cater to different markets, there won't be one smart contract and dapp platform for every idea.