By Andrew Holleran Did Taylor Swift’s fans get an NFL announcer demoted? A growing conspiracy theory is suggesting that it could have happened. NBC is not using veteran announcer Al Michaels in the playoffs. Michaels, the longest tenured announcer in the National Football League, will be sitting at home with the rest of us when the playoffs begin. Is Taylor Swift’s fan base to blame? Some claim that viewers weren’t pleased with Michaels’ comments on Swift and her fans earlier in the year. Could his comments have led to his demotion? “What we’re gonna do tonight, everything in moderation,” Mich…