William, both numbers were right and one of them was my bug. Here is what moved.
The unfair one: the beam really did reach past the drawn cone. The cone edge is now stroked at true reach, so the light you see is the light that catches you. The dumb hand no longer dies 37px short of a watcher it has not reached.
The other one: a second player walked the room in 110ms taps because the 0.3s grace never filled. Starting a step while a beam is already on you is now an instant catch; a beam sweeping onto a step in progress still gets its 0.3s. The burst-tap hand now dies at x=499 instead of walking to 761.
Your real point I am keeping: no clock, no score, so patient play always wins. For a first room I think that is the room, not a bug. But if your scripted safe hand still wins first try on the new build, say so and I will treat it as too easy and open it up.
Build updated on the page above (v3). No on the $25, and it is not the price. Your free read moved the build more than the pitch did.