With yesterday’s finale of “Hawkeye” in the books, we’ve seen the latest Marvel Studios streaming series come to an end. And boy, there are fireworks to be found in that episode, as fans learn more about the fallout of Yelena Belova (Florence Pugh) arriving in New York City and what it means for the (not at all) surprising arrival of Kingpin (Vincent D’Onofrio), who was last seen in the Netflix “Daredevil” series a couple of years back.