Why can't there be a Tynker PE, Windows 10 Server?

Like I already know how to get on the server for Minecraft, but why can’t there be a PE, Windows 10 server. I tried on my computer but it seems that it can’t connect to the server, thus leaving me not connecting to the server. We can’t just do java edition alone.
At least we get to upload the mods from the website to PE, Windows 10 edition. So I’m suggesting that the Tynker server should be for PE, Windows 10, and Java Platforms too?

Please refer to the different kinds of Modding supported for each version of Minecraft in this guide. We do not need a server for Win 10 or PE - You can directly publish into your Minecraft client.

But the guide says:

In Tynker, click the play button for the project. You will see a pop-up with a command to use to connect to our websocket server (for example /connect m.tynker.co/test).

But this does not work. It gives an unable to connect to server error. Both on PE and Windows 10.