[jozvolskyef]

I appreciate the simplicity of a system that allows you to provide your own API key. All the complexity of authentication, rate limiting, cost capping, scaling, is offloaded to someone else, and you can just focus on the essence of the thing that you're building.

[bastawhiz]

It's Google asking for an API key to a google service. "Simplicity" here would just be them letting you run the demo. Like yeah, all of the "authentication, rate limiting, cost capping, scaling" is done by Google, it's a Google page running a Google service.