That's good news. Binance is one of the most popular crypto-exchanges, and in the US there is a huge number of people interested in cryptocurrency. I think, ultimately, it will have a positive impact on the price of Bitcoin and other cryptocurrencies.
Binance is mostly being used for altcoin trading. Only about 30% of the trade volume comes from BTC vs USD or BTC vs USDT trading. The remainder is mostly composed of altcoin vs BTC or altcoin vs USD/USDT trade. Binance exchange supports more than 500 different coins in its platform, so when compared to the other exchanges the altcoin volume is higher for them.