The fact is he plays for a different club now and the national commentators are being annoying about the trade now (including Boog, who commentates national games and brought up the trade a bunch of times yesterday).
I guess that the storyline in this series will be the Cam Smith/Kyle Tucker trade, and when the schedule moves onto the Cleveland series, the storyline will be the 2016 World Series. But the suggestion that anyone is giving Cam Smith hate is, IMO, inaccurate. More power to him if he has a solid career.