Street is often made of juxtaposition, so It's normal to have a main subject distacting or co-existing with another.
I think eye contact would have been better too, but it's just another way of telling a story.
One of my purpose this year is to shot some street photos with eye contact. I think Street doesn't have to be candid at all costs. And, indeed, it takes more courage to get an eye contact than shoting candid.
I was reading a book about R. Capa and reportage technique is most in being in a relationship with the subject than to candid take it.