In principle, the idea is quite good, but a stream is still needed as a way to promote the event. You also saw how it was played on a stream. But maybe in future contests (if there are any) there will be an option to record the game instead of streaming, or to stream only for the judge, as you suggested.
Then I suggest letting players choose the method that suits them best. And try to promote the contest in a different way. Maybe a YouTube channel?