No platform is perfect, under Binance management, maybe they can improve it, but the fact that they are visited by millions of people, that says a lot of people trust their information.
People are familiar with Coinmarketcap's interface and is the one that started this market cap graph, they have established loyal supporters I am one of them, but there are also some sites that offer better features but I'm not leaving Coinmarketcap, I prefer to include the others for comparison, we actually need at least three for better comparison on the price.
Of course some sites could offer better features but what makes CMC retain its standing is because their site looks simple and that is very helpful especially to the newbies, some sites like coingecko is good also but I would still prefer CMC as I get use to it and all information i need are all here.