They’re not confident that Grandal can stay healthy. If he can, they use him to play 1B and DH as well. Everyone that I trust that has good info has suggested the Sox are after a starting catcher this offseason.
I put a lot of value in Hendriks, and it’s why I don’t think Mets are a good fit because of Carrasco likely being the best you could get for him. I still think there’s a very real chance Hendriks goes to Toronto for Jansen.