I strongly agree with these suggestions, if the creator(s) happen to read this.

And while these suggestions may seem like nitpicking, they are not.

While not everything around REST APIs is entirely standard, there's a great deal of agreement about proper resource naming and use of HTTP verbs. If you follow these widely-used standards, not only will developers find it much easier to interact with your API, but also there is a lot of tooling and client libraries out there built specifically to work with APIs that use HTTP verbs and URIs in the standardized ways.