Anecdotal evidence from "I saw this happen..." or "My Uncle Jim's best friend who is and engineer saw..." make for poor legislation. Dig up some actual stats on how many times a bus stalled on a rail crossing because it made a safety stop and then you MIGHT have a case. That's if, and only if, you can prove that the stopping directly led to the stalling and it was not a mechanical defect that would have occurred regardless of the stopping.
Ok I shall do that. I will also challenge them on why when there's people in the bus it has to stop prior to but if it's empty and there's only the driver, then it can cross without stopping but I'm sure not many people know that. Plus on the mechanical defect that would've occurred regardless sounds contradicting as by the way you are saying it that had the bus not stopped it would've happened and had it stopped, it still would've happened. So wouldn't that be able to work in my favor. As for the legislation well that's something we have no control over as here in California and most of America they are very stubborn but when it comes to safety I'm hoping that they'll listen and at least consider it.