Yes, see since pee is stored in the balls, if you squeeze them too hard they can rupture, causing the pee to enter into the blood stream. Pee in the bloodstream can result in death of humans.

These are the tactics they don’t want us to know

Yes, though it's very small chance, the pain can be so intense that people can come into shock or even cardiac arrest from that.

The piss is immediately squeezed out into the circulatory system, inducing rapid death

I assume that a person can bleed out from a hematoma.