Heavy Rain is, in many ways, not well written (Spoilers)

[twesterm]

I agree there were some ridiculous parts in that game like the kid being too stupid to live, but sometimes you just have to suspension of disbelief.

Considering this is David Cage, movies always have areas with suspension of disbelief. Pick any move and you'll have parts where you just kind of have to turn off your brain for a moment.

And movies aren't alone in this. Take God of War for example. Kratos can lift a stone building but he can't kick down a wooden door. Suspension of disbelief.