CAsA has always been a divided entity. What you will find is their are some CAsA employees in DRW and possibly CNS who liked BA and found them easy enough to get along with, for better terms. Then you will have the other CAsA people who thought BA was pooh an wanted them assigned to the history pages.
In a situation such as this it is easy to find out CAsA's motives if you know all the players involved and their extensive histories.
As with any game of smoke n mirrors, things are not always what they appear to be.