Holy arcseconds batman.
That’ll teach that rock to mess with Earth. ;^)
It’s a good proof of concept demonstration. My view is, redirecting the trajectory of something we can move, that is already up there, and preferably moving in retrograde around the Sun, would be good to have all set up, and would deliver more energy to the larger interlopers on course for us. With a large hazard, it’s better to turn the whole thing into space gravel.