Stat people understand not to take these projections as gospel, and they also understand the margin of error. As I've posted before, it's impossible for projections to be consistently within 6.4 games of the actual wins and that a swing of 16 games around the projection is not uncommon. Sabermetric folk readily admit the shortcomings of any type of standings projections.
Here's a good quote from Speier's article today:
"Those in the statistical business of projections and forecasts do *not* expect that the season will unfold exactly according to their initial depictions. Forecasts are probabilistic rather than absolute, with sizable swings representing a common occurrence rather than an aberration."
That said, the projections give us a pretty good indication of the talent level of the team. On paper, the Sox are the 2nd best team in baseball. That's what Fangraphs projections objectively tell us.