Sorry but no, you haven’t 
Note the “one of them” in there??
It’s a very common thing for desktop apps to include webpages as part of the application, especially if the so called API is lacking, not working properly, etc, etc… I can deal with things changing, but actually breaking or removing functionality is a different thing altogether.
The fact that I have to resort to using these methods (for both the video player and plain app authorization) says it all tbh. But again, all I hear/see here is avoiding tactics instead of looking into the issue, being it either the popup being broken or the embed not behaving as expected and numerous other things (I have a quite extensive list by now).
I don’t feel I need to report a bug. I reported a dev issue here, on the dev forum. Not an API issue but a web issue, hence why this is posted under the help/web category.