I've not heard anyone say Carpenter is having an excellent year.
Shoot me a link if so.
If he was having an excellent year, he would not be making great money to rank ninth on the team in ABs -- soon to be 10th once Edmundo Sosa passes him by.
His average and on-base are slightly down from the rotten year he had last season, and his slugging is a hair above. He's been an OK bat off the bench, considering the NL is having a pinch-hit crisis this season. That's about it.
Specifically, Mozeliak trotting out his "Daddy always said hit them where they ain't" line goes against the idea that the team is selling sunshine and flowers about Carpenter's season. They're trying to get what they can out of him, in large part because of the contract. They have been beaten up by injuries enough opportunities have presented themselves.
Now, his June (.250 average, .382 on-base percentage and .357 slugging percentage) has been by far his best month so far this season. Could mean something. Could mean nothing. Normally, that might be celebrated. But Carpenter has reached that weird place with some fans where they almost get mad when he does something good, because they have been so adamant he should never see the field and should no longer be on the team.