we all agree!
I agree that we have a tried and tested process in place at the moment and I also agree that it's flawed like f*ckery! But that's the system and I want to gain promotion by following said process.
In an interview you can come across better how you supported the purser role by taking on responsibility and showing willingness to help. Plenty of pursers in worldwide would love to reward willing crew by delegating responsibility and helping crew understand the key specifics of the job (in other words help in your application and interview preparation.)