The team of Binance have got great ideas and they are putting those ideas to work.
This is why I am not surprised to see BNB grow that much.
The Binance chain, might not yet be a threat to ethereum, but I see it making a lot of impacts, despite being centralized.
A lot of coins will be seen migrate to it, but it will not be able to accommodate all, which is where ethereum will continue to be relevant.