vite uses Rollup, and I think it's probably better too. When I see zero configuration I become less interested in a project, because I like being able to configure things.
Edit: I found this on Vite's website: "Vite plugins extends Rollup's well-designed plugin interface with a few extra Vite-specific options. As a result, you can write a Vite plugin once and have it work for both dev and build." https://vitejs.dev/guide/api-plugin.html