IMO, idea of “Semitic features” is largely a subjective one. Americans who have only known and seen American Jews (80% or more Ashkenazic) have a certain idea of what semitic features are. Having visited Israel, which has a wider range of ethnic groups of Jews, I thought many Israeli Jews look pretty much indistinguishable from Arabs or Gentile Caucasians (for lack of a better term).
I’m in India, and we have quite a number of Israeli tourists and business travellers visiting here. From what I’ve seen, I’ve noticed practically every racial feature in most of them. I really wouldn’t be able to tell a Jew apart from anyone else, atleast not all the time.