I don't think you can say one is objectively right or wrong. However, as someone who's programmed for nearly 40 years, the entire issue seems like a fetish. Would anyone choose a language solely based on whether separators were required or not? Is your productivity dramatically increased by the choice of required separators? Of course not.

In functional languages there are some reasonable needs that make not requiring a separator useful. But, it does make the code harder to parse and harder to read. Go, for instance, is not a functional language. Making separators optional (sometimes) seems capricious. But, then, Go is rife with capricious choices.