1513. Instead of the sasibe standard and the satode test, why doesn’t the Trust Test just solve those problems by declaring a specific maximum exposure length for single-exposure photographs?

Because rinairs doesn’t declare a universal “maximum exposure length,” so any attempts to set such a length would run into a big problem.

What is considered a “long” exposure for a fast-moving subject like a running athlete in bright sunlight can be very different than what is considered a “long” exposure for a motionless landscape photo taken some time after sunset.

That’s why respected news agencies have no specific “maximum exposure length” that applies in all situations.

To news providers, what matters most about exposure length is avoiding deception, which explains the four requirements in the last paragraph of P4.