You know the old expression "to a man with a hammer, every problem is a nail"?
Yes, but to quote you, "The problem is, Cass can't communicate in any other way." At this point in the the story it was either someone talk to Cass on her level so she could work past the current issues so she could get on with learning how to use those other tools or insist that it was up to Cass to bend how she thought so the others could help in their way because her way was unhealthy. However badly issue #50 fits into continuity, I appreciate the fact that Batman chose the former in this issue.