Kind of a trashgame.
Too simple and doesn't make any sense.
At least I bring good news... 50k is, in fact, possible. Just requires timing and a lot of luck. With the final laser pointer I was able to do exactly 49904 points of which 25.7k on the first stage. So it's possible, but takes a lot of timing.
And yes: The "warning system" is garbage. Too bad I got my hopes up.