While this is cool idea, how possible would it be to extend any particular scene by that short of a time? If the video is output at a typical 24 fps, the shortest any scene could be modified would be ~42 ms. Even with a lot of newer footage being filmed at 48 fps, it's still only able to clipped at a rate of 21 ms.

Past that, I've seen a small amount of time shifting take place during a not-so-careful re-encode. At 1 ms precision, even this would be enough to throw off such a tracking system.