This week, the first week of a new NFL season, is the biggest of the year for companies like DraftKings and FanDuel, the platforms that offer a “daily” alternative to traditional “season-long” fantasy sports. This week is when new users sign up in droves. But this season, there are more states where users can’t play DraftKings or FanDuel than there were one year ago. Amid widespread legal scrutiny after the two private tech startups flooded airwaves with $200 million worth of advertising, a few new states became unfriendly. (See where every state now stands on daily fantasy sports.) One of...