Hey Clay, thanks for reaching out and for the kind words!
As far as banishing HDMI, I don't blame you one bit. 🤣
When you break down the new Web Presenter HD and the VidiU X, they are essentially the same type of product. Both will only stream to one destination at a time. While the Web Presenter HD can technically stream to another destination when connected to a computer via USB, I don't consider that a main feature since it still requires a computer to handle the encoding.
Therefore, knowing that information...
You will still need some kind of subscription if you want to use one encoder (Web Presenter HD or VidiU X) and stream to multiple platforms like Facebook and YouTube simultaneously. You will have to stream to a platform that can simulcast your single stream out to each destination.
You will need to purchase an encoder for every platform you want to stream to. And you will need a good internet upload bandwidth to handle the multiple simultaneous streams.
IMO, smart money is definitely in getting an encoder that can be used anywhere (BYOD). That is going to be the most versatile and reliable long-term solution.