Hullo Mr Angry ! Good to hear from you.
The BALPA article mentioned a 'very large UK operator'. I don't know which airline was meant by this statement so neither of us can assume it is British Airways.
Ref your 1st point I have operated the 24 hour slip pattern many times and found it very tiring. If the schedule allowed for 12 hours rest Stateside then (in my view) it might be less tiring on a regular basis.
I am not clear on your second point and decline to comment.
The point I am making is this: Where the CAA, backed by scientific research, finds that CAP 371 needs amending to limit industry working practices how can the airlines rightly veto the changes?
The problem with FTL won't go away and the CAP is established as the safegaurd against fatigue in commercial pilots.
Is not something wrong with system if the CAA, as I suspect, is bowing to commercial pressure?