I actually recommended this book recently to CeMar.
In any event, information is only as good as you make use of it. This particular presentation spoke to Hap and turned on a light for her. If the Adult Attachment is what turned on a light for Cobra, great.
We have all become painfully aware that power struggles in Rs are not good. BF happens to call it 'competing.'
In any event... the greatest line I can apply to understanding the power struggle is: 'The only way to win is not to play the game.' I don't care how you get to the understanding, but get there if you can. I truly believe that once ONE person in the R truly understands the pure destructiveness of power plays, or competing, within an R and STOPS doing it... the R can and WILL change.