why use rest api in what scenario is REST better? NoSQL

There are now REST apis for Mongodb and redis.

I can connect to those databases with my language's driver.

Or I can use the REST api. I understand that the REST api is easier to grok, and easier to convert from language to language. But there's less features.

But is there any reason to use the rest api if I'm already doing fine with the language driver?

Thanks.