Many advertising executives say it’s too early to figure out whether the annual “ upfront ” sales season will be robust for video companies. Alan Moss thinks he’s already in the moment. “The upfront market is strong this year,” says Moss, vice president of global sales for Amazon Ads , during a recent interview. There may be some worries tied to macroeconomic factors, including fuel prices and the direction of the U.S. conflict with Iran, he says, but “there are always headlines” that may give marketers pause. Nonetheless, he says, “we are seeing really positive signals. It will be a healthy upfront season.” The executive offers his perspective just days before the official kickoff the media industry’s annual “upfront,” when U.S. TV companies try to sell the bulk of their commercial inventory ahead of their next cycle of programming. Starting Monday, most major media organizations will hold showcases in New York that aim to woo millions in ad support from top marketers.…