Except what Arnold is saying is they have to be cautious about who they add, especially if it’s a non-1B or DH, because whatever additional offensive value is provided can easily be canceled out and more by giving away runs on the defensive end. That’s not what you want with a team that is going to win games for the foreseeable future with its pitching and defense.
You totally took his quote out of context. If they add a bat, it has to make sense from an entire team perspective, which is what really matters. Now, cool your jets because there’s some of those guys out there and I’m inclined to believe Arnold will get one of them.