You're comparing a corner bookstore and amazon. They both do the same thing, one just does a lot more.

Binance has a good UI for the things it does. It uses pretty much the same UI any Stock trading platform does. It's been tried and tested for years in live combat so to speak.

The new crypto sites like Coinbase and similar are just a fancy crypto versions of Forex or Western Union. They set their conversion fees and let you buy or sell for whatever the spotprice is at the moment. It's not meant for any sort of volume trading. It's only supposed to give newcomers a nice-looking, non threatening way to get into crypto. It's more or less guaranteed to make you Lose money in the trade. It's just a conversion and not a trading tool. Binance gives you ms-detail trading in a way Bancor or Coinbase could never match, which means you can set up bots and high-speed trading algorithms, do technical analysis and try to predict markets with either short or long positions.

Coinbase is very much aware of this and is therefore running an exchange of their own, separate from the nice looking rookie-trap, https://pro.coinbase.com, which looks suspiciously similar to Binance. And for good reason.