Utter non sense!! Many of the project are running on ETH, ETH will survive and grow. I am worried about the network congestion, but it would be solved over the time.
Network congestion isn't a problem so much anymore. AFAIK gas tx costs are now 1-2 GWEI and that is despite new blockbuster dApp games like FOMO3D or POWH3D (the amount of txs on these contracts is more than cryptokitties).
Like i've said many times, scalability is a known issue that is close to being solved by ETH devs.