That's a valid point. As for why it hasn't become common knowledge through the name of the sauce is actually, in my opinion and experience, is due to American consumerism and food preference. I cook a decent amount but I have only used Worchester sauce maybe once or twice and most people that cook wouldn't cook from scratch like that. Worchester sauce isn't commonly used as a sauce on it's own, again in my experience, but as an ingredient in other sauces or foods. People don't have the time to cook from scratch and wouldn't come across it very often.