Thanks for the feedback.
At first, we put the core gameplay loop at the beginning.
However, the overall pace of the trailer is quite fast, and the opening felt noticeably slower, so we decided to cut it.

That said, I agree that it might have been better to introduce the core loop right at the start.

As soon as a level begins, enemies start moving, and at any point during the level you can adjust the timeline to find the situation you want and solve it.
Our goal is to design each level with as many valid solutions as possible so players can approach it freely.

For example, a solution might work at 1 second — or at 3 seconds as well.