> But it auto-suggests what index to use and has a button for you to immediately apply it. I'd say it definitely intends for you to avoid learning how indexes in MongoDB work. The index suggestions it makes are often terrible.

Heh, yeah, you're right. So I guess it's the worst of both worlds: they try to not have you learn about indexes, but they give you terrible index suggestions, so when those don't work out you still end up having to learn about indexes :)