We rely heavily on Redirect components, to support a "legacy" URL structure being forwarded to the current URLs. We are able to resolve these forwards server side during SSR. That whole feature was ripped out, with the suggestion that everyone just use the history API to redirect users, or write a whole bunch of separate controller logic in the server process. This, of course, was not a suitable substitute. When we looked at the "compatibility" plugin to help v5 users migrate to v6, they didn't include this feature in it at all.
https://gist.github.com/mjackson/b5748add2795ce7448a366ae8f8...
Philosophically, he just decided that there was no value to a Redirect component.