I think Ethereum did a good job at promoting bitcoin wide adoptions,
you mean the coin that's advertising campaign was centered around replacing bitcoin? the coin that invented terms such as "flippening" and "bitcoin maximalist" just to pump itself more?
i don't think it did anything remotely positive for bitcoin. not just that, it didn't do any good to the whole market either. the ICO and basically the scam techniques that it introduced will continue biting the whole market in the ass for years to come.