I was Speedrunning TSP Demo, but then I thought, you’re not able to move, and nothing happens for the time where the narrator tells you to think about what you’ve done, so does it count as time?

It does, it's considered a cutscene not a loading screen. The time there is the same for everyone so we don't remove it.

Ok. I’m just saying because I think someone used it to their advantage, and instead of showing the cutscene, it showed a loading bar for some reason, and that skipped almost 10 seconds off of the run.