I have to agree with the comments above.
I believe decision makers at Epic don’t see how fundamental some information on the wiki were, and how those will probably be never reflected in the docs due to structural differences. Documentation is more like a theoretical bootstrapper, with everything explained, reasoned, etc, but missing one key thing: very easy to read examples. Not projects to download, not YouTube videos to watch, just 50 lines of raw code, which explains everything.
While documentation answers the question “how does it work?” (with many technical parts missing), the wiki asked the question “how do I actually use it?”.
Like, how to do an async task in C++, how to set up your plugin, how to compress save games, etc. Small snippets, which were a great starting point.
So, I guess that’s why this “change” is less than welcome by the community: we’ll never see these snippets and mini-tutorials again, and they will probably never be a part of the documentation.
I’m not sure why do I take the time by writing this down, as evidently there isn’t a discussion the community is a part of, we just have to live with decisions made by Epic, unilaterally.