I agree with you on this assessment. Of all the people who should be grabbing a 1Bman mitt, it should be Anthony . Give him the practice time in Worcester that Campbell is getting now.
One , Anthony's fielding upside is apparently not huge, like many Fenway LF'ers. Two, I don't know yet if Campbell will be an asset during the remainder of this season . His ability to adapt his hitting to how he's being pitched will determine that. The need for a power hitting 1Bman is clear and present. Yes, Casas will likely be back at ST and be evaluated, but I think Breslow would move him on to another team at the first request. Anthony should be considered at 1B .
As others have said, all of this is so much talk as long as the starters can't finish 5 innings and the relievers are arm weary and of limited effectiveness in late May.
Given Casas' and now Bregman's injuries , look at the lineup. Heavy reliance on rookies and platoon guys.
Shout out to Narvaez for singlehandedly curing one deficiency by himself.