Nothing to do with BA's monitored approach. Every approach they do is monitored because the person who does the take off and landing does not 'fly' the climb cruise or initial descent part. There are other airlines that use the monitored approach philosophy and having used both in my career, actually prefer them when landing in poor visibility. That, however, is another subject altogether.
As I said previously, whatever it's called, it's down to the pilot on the day to use the airmanship they have or were trained to have. Some people find it acceptable to use mobile phones whilst the other pilot is taxiing. Some pilots can't see a problem with adding up the times on the flight plan in the climb passing FL200 even though the flight is 8 hours long. Others are happy to do a goodbye PA during descent even though they just had 7 and a half hours on their arse showing photos on their Ipad. And all of the above in a Company with a rigid and enforced culture of SOP adherence.
Back to the thread I think.