The thing that gets me here IMO is that Boston lied through their teeth when they signed Bregman, saying he would play SS or 2B. Then a week later they say they're moving Devers to 1B and putting Bregman at 3B. Then next week they say Devers is DH permanently. Then Bregman gets injured and they don't let Devers cover 3B while he's out.
I can understand the frustration from his POV.