Having done my time as an Army medic, this is incorrect. It takes more force than that, but less than you might think. A good 25 kilos with some velocity behind it will easily sever a phalange. Up it to 50 or 80 kilos and you can claim an arm or shin. Mass is the real killer. I’ve seen a vehicle at comically slow speed absolutely yeet someone because it had several tons of momentum behind it.
Casual readers might remember a recent very low-speed collision that nonetheless caused a catastrophic failure due to the tens of thousands of tons of weight. The MV Dali vs. the Francis Scott Key Bridge, if you didn't guess. It struck the bridge at about 8 mph.
He did demonstrate it that way, specifically with a carrot. And it somewhat worked. The problem is they programmed it to do more and more pressure every time it fails meaning that doing the carrot first actually caused a safety issue. He only moved onto his finger because the safety feature seemed to be working.
The engineer told him the frunk increases in pressure every single time it closes and detects resistance, Judkins said. It's going to assume you want to close the frunk and maybe something like a bag is getting in the way, which would make it close harder.