It just seemed to me that Thompson did everything here so that Damian had the opportunity to return to Batfamily (no Titans, he's done with them, probably) without any problems, in the sense that Bruce did not reject him, but, on the contrary, was devastated, admitted that he let him down and asked him to return. And the emphasis is made on the fact that the cause of Damian's breakdown is the death of Alfred and Dick's amnesia, at least one of this will soon be fixed. And Alfred will return, we all know that this will happen. And Tynion said, that their goal to reunite Batfamily.
I wouldn't be surprised if the main reason why they still went this way here is rather a desire to make Tim Robin again, and give Damian a new alias.