It depends. While Blockchain.com definitely has a big name and a good reputation, it still completely depends if it can outcompete Binance and Coinbase.
Taking a look at the article, it doesn't look like Binance is actually the competition, probably Coinbase, Kraken and Gemini because it looks like "The PIT" is going to be an exchange that would tightly follow regulations. Hence it wouldn't beat Binance in terms of the number of coins and tokens available.
EDIT: Wait what. It's already going online in 6 days:
https://pit.blockchain.com/trade:>with your logic and analysis its better to find day job :>
Binance has been shilling its centralized BNB token.
Anyone taking Binance posts about BNB seriously as any sort of trading signal is dumb enough to trade literally any shitcoin they see, and probably deserves to.