Access to a web API to be able to add the sideload upload testing process into a CI pipeline build could be pretty handy. Especially on a larger project with a longer timeline or a more rapid development cycle.
This could also potentially expose some of that cacheing stuff that could be set or overridden more explicitly, to prevent incorrect/old name displaying.
I'm not sure if this is something anybody else would consider useful.
(Random thought that it could be interesting... the ability to flag for immediate download with that API call, so a tester wouldn't need to go into Settings > Games and initiate an update manually. But I'm sure there are numerous reasons I'm not thinking of as to why this isn't a good idea...)