Yeah. He knows. She's taking things way, way too fast, and apparently all that happens when he asks her not to is that she goes on and takes things faster. So maybe all he can do is look the other way and wait for the inevitable and hope some of them survive it.

The point he wants to make is that emotion isn't a bad thing, but being ruled by it is. That sometimes caring means inaction. His mind is megaparsecs and decades away, standing on a sinking platform above Bespin, telling Chewie not to fight even though every inch of him screamed to resist.

Maybe he understands the Jedi better than he claims.