REST Resource Naming Best Practices, as defined at https://restfulapi.net/resource-naming/ suggest that query strings should be used for filtering a resource collection.
However, JADE-style REST URLs are of the form
IIS server URL/jadehttp.dll/path[.xml|json|jsonn]?app_name[&extra_info]
The ?app_name part is non-standard, and causes some third party tools (such as the .NET REST Client RestSharp) to be less effective at generating the URLs needed for consuming REST services from JADE.
The idea is to allow for JADE to provide the ability to implement REST services using the standard URL structure.