See if Miller had to have Cass lose the cowl, it would have been much easier for her to say she couldn't work with the new "Batman" rather than she just wouldn't do it with Daddy Bruce dead. One of the largest ramifications of the Beechan fiasco is that Dick has constantly been a Dick to her - more than Alfred, more than Bruce, more than Tim (who Dragon Lady Cass tried to kill). They kinda made up in The Outsiders but other writers seem to ignore the redemptive team leader Cassandra that appeared there.