Doing something freely of choice with no (or very mimial) downside risk, and doing it at the penalty of losing ones jobs, whilst the employer denies the practice, have substantial daylight between them.

I can only assume you have some very deep seated issues around urine and urination? With a totally straight face, you're comparing pissing in bottles with being imprisoned for four years. Amazon could demand full bottles at close of workday, and then pour it on your head, and this comparison would still be farcical. Recalibrate your outrage.

I'm going to blow your mind: RV toilets are just giant bottles with levers and valves.

I am comparing the case of urinating on a roadtrip as a means to save a few minutes on arrival time, with a significant labour force being obligated to do so under terms and conditions of employment whilst their employer loudly and publicly denies this fact. (The fact that the employer later retracted the denail doesn't obviate the predicate clause.)

Your reading of my statement is far from the mark, curiously so.

Please start peeing in bottles daily as part of your job, and let your co-workers know about, note their reaction. This discussion is about unacceptable work hazards, not exclusively about being imprisoned on a ship.