So, custom user content for all platforms destroys the mapping community? Also, i mean, it'll never top Source SDK in terms of detail. If you want simply looking maps, use the (seemingly) easy map editor. If you want a detailed map with custom content to make it unique, use Source SDK. I don't see how whole thing could destroy the mapping community.
Creating this streamlined system for publishing maps only made with this new editor will effectively stop players from wanting to go through the trouble to install maps not made with the new editor.