I’m sure the engineers on the project know the dangers, but to not at all adress it when talking about wide spread adoption is neglectful. Ammonia vapors can cause your lungs to fill with fluid and you drown. Skin contact causes severe chemical burns. Certainly consumers would want to know what kind of safety systems are planned before considering handling this substance on a regular basis. I wouldn’t be complaining if they were just talking about cool demonstration vehicles. The claim is that widespread adoption is expected.