Back then when the market was way smaller some people really thought that ethereum had a chance to surpass bitcoin and become the most dominant coin in this market, but since then a lot of things have happened and now we do not see those discussions anymore, and it is not difficult to see why, after ethereum got incredibly close to surpass bitcoin the distance between the two coins has become immense, and even if ethereum has reached new all time highs in terms of fiat it has never come close to surpass its all time high in bitcoin terms and I think it is reasonable to assume that it will never do.
That was 2017, still very early for crypto market and bitcoin. And with so many FUD back then with bitcoin, it went down hard and the Ethereum rises up, that's small chance for Ethereum to take over didn't materialized though. But it was a good and scary to see that time, when we thought that Bitcoin will lost everything. But this two crypto, became dominant up to this time, and that is the most important. Bitcoin the top crypto and then Vitalik's Ethereum, although a lot of competition as well, become the best Dapps and altcoin.
That is correct, ethereum really came incredibly close to do what at the time was called the flippening and exchange positions with bitcoin, however it never happened and then things very quickly got back to normal and since then ethereum has never been anywhere close for that to happen, and when we take into account the massive competition that ethereum is now facing by itself then I think it is safe to assume it is never going to happen.