Please there is no course on flutter, make one fast
What would be the hurry? Google obviously took their time in getting this to a stable release (December, 2018), around four years in the making. The language it is written in has only just announced a stable release about a month ago. Granted, and no doubt, developers are climbing on board, but I don’t see a fire that needs putting out.
I also don’t doubt that there is sufficient documentation on hand for developers to acquire the necessary skills to work with the framework. For CC to devote members of the curriculum team exclusively to this project it would mean sacrificing other projects, or bringing on more staff. The cost would need to covered somehow.