The cryptocurrency users does not regard Ethereum as superior to Bitcoin, as evident from the exchange rates and trade volumes. I agree that smart contracts and tokens are very innovative, but for the ordinary cryptocurrency users these things doesn't matter much. What matters for them is the use of Bitcoin as an investment asset, or as a currency, and in this case Ethereum is not superior to Bitcoin in anyway.
IMO, we are doing the mistake by grouping Ethereum together with Bitcoin. That is not right, because both of them are entirely different assets with only a few similarities. Ethereum is more like a platform and Bitcoin is an asset which is protected from inflation (suitable for use as store of value). And the users are also realizing it. Earlier the exchange rate of ETH and BTC used to be in sync. That situation has changed now.