I wanted to address this in full, since Mr. Bias couldn't back up his position, and got pissed when confronted about it:
Couple of points:
Baseball Reference categorizes pitchers by three echelons "Power", "Average", and "Finesse".
Power pitchers are guys who are in the upper echelon of Walks + K's, average are, well, average, and Finesse rank near the bottom.
Usually, by these standards, power pitchers consist of the upper echelon of pitchers, and so forth, and while the rankings aren't perfect, the following is the Red Sox' performance against each type of pitcher:
Power: .777 OPS, 121 sOPS+
Average: .740 OPS, 102 sOPS+
Finesse: .870 OPS, 130 sOPS+
(sOPS+ is used to measure OPS in relation to league OPS instead of individual OPS, in which case, stats against Average and Power pitching would come out below league average.)
Also, when looking at the Game Logs, i found that the Sox had hammered the following pitchers who were in the upper third of the league in ERA (at the time):
CC Sabathia
AJ Burnett
Zack Greinke
Phil Hughes
Francisco Liriano.
As well as performed "well" against several others:
James Shields
Brian Matusz
Colby Lewis.
The Sox have performed well offensive in basically every situation presented to them this year. The offense started out inconsistent but has really clicked since late April. Saying they "lie down consistently" against good pitching is a flat-out lie. Cue backpedal and sidewinding.