For Swihart to improve behind the plate, he needs to be playing 60-75% of the games, which of course with Vazquez, he isn't going to. Defensively, Swihart has a lot to improve on regarding containing balls in the dirt. I don't get the impression pitchers are especially trusting of him when it comes to throwing a low slider or splitter.
Remember what Hanigan's role is on this team. The 40% he's playing is catching Wright (which physically has to be like catching 2 games) and babysitting the Kelly/Owens/O'Sullivan slot in the rotation. Not sure that's the slots you want throw Swihart into.
As for the Globe article, I made the mistake of clicking on that one. If I remember correctly, it was an Eric Wilbur piece. When it comes to that "journalist", if you take what he says and do the opposite, you'll come out ahead almost every time.