ps. "Mandatory" deco is really only a black-and-white situation to people who don't have deco diving training (and people who got the training but didn't really understand it). Once you have the training and have some basic level of understanding, it becomes a spectrum, not a digital, 0 or 1 ONLY, subject. At which point, the difference between 1 minute of NDL or 1 minute of a deco stop is no longer the difference between a clear-thinking diver and someone who is "beyond delusional".
But where do you stop? How many minutes can you drop and not increase risk?
It might be an arbitrary line, but there are still concequences of crossing it. They might not always include obvious injury but only an increased chance.
Do you think that are so incompetent as to bend their computer will notice what they did if it doesn’t sulk inconveniently?