Problem:

As listed in the Service Desk REST API Documentation, below is the current behavior for

curl --request GET \
  --url 'https://your-domain.atlassian.net/rest/servicedeskapi/servicedesk' \
  --header 'Accept: application/json'

{
....
"values": [
{
"id": "10001",
"projectId": "11001",
"projectName": "IT Help Desk",
"projectKey": "ITH",
"_links":

},
....
} 

Suggestion:

Adding "projectDescription" key/value to this would be helpful for some people.