As someone who has used react-router before and is currently evaluating Remix for a different project, I didn't realize just how thin that layer has become. I suppose there's a ton of features in react-router I never touched.
From a marketing perspective, I'm not sure if it's genius or insane. It's going to get a lot of people on the platform currently called Remix, but I also feel like Remix has built a strong brand and not having a project that uses it explicitly feels ... suboptimal.