That's okay too, because sometimes names do match up. Most people named Baker aren't going to be a baker, but considering that it's in the top 40 most popular surnames in the US, it's not at all unlikely that some of them are, especially because we as humans are unconsciously drawn to those 'coincidences'. Also, names that match, like your example Jon big Nose, aren't always their real family names, but rather
epithets. This happens in real life too! For example, there's a Wiki page for
Big Nose George, but his real name was George Parrott. So no, I don't feel cringe either way. I like it when a fantasy world offers a mix of both, as well as some names that are just completely unrelated.