I do not think EOS is a menace to ETH right now. It could be in the very long term if they solve their bugs consistently and modify the governance issues with block producers selection process. In the short term I only see EOS as an interesting investment, just that.
EOS? Lol EOS, you're comparing apples and oranges, you can compare EOS to Amazon's AWS maybe but you can't compare it with Ethereum, EOS isn't even a crypto project in my book since it's not even decentralized. As I said we don't even need EOS in our world, we already have IBM, Oracle, Amazon etc... if you want to use some centralized cloud/database