Ethereum has been working on improvement with the existing platform and beIng a creater of smart contract. EOS in comparison, has no product/Platform yet whIch gives chance to build better platform based on Ethereum. It is healthy competition I think. Both can survive if there are different use cases or if they compete on the same, and users will decide.
I hope both will success! Revolution isn't happening in a short time. Bitcoin took long time to come to effect the idea of digital cash since 90's and it's still not confirmed if it can be used as currency yet.