Perhaps @Horizon22 will drop you an apology for responding so robustly when they were ill informed on the matter and we can move on, it happens.
Not really. It remains the case that breaks are mandated part of any person's work - whether that occurs "on train" or not is a separate matter - they are simply not available to do booked duties during that time and could theoretically refuse if push came to shove. Not taking that into consideration by anyone who works in control or resource management is a very dangerous game to play.