Hi Veloo, Long time no talk.
Your Question: why do we ask for descent right into our mates?
Answer: Not having enough of the " big picture" .
You will find that there are some pilots who can mentally figure out where the other 5 blokes are in the zone and some actually use the tcas now to see. But alas, we do have some amongst us who are still very closed. ie have very low situational awareness. This is also something very subjective and not meant to be "judgemental".
The " worry about my profile " above everything else is the factor. Most pilots who have had the exposure though......will develop this higher level of SA. ( again subjective la )
Sorry this is a bother, but U know what. Since it is highlighted, I think all of us here should put on our thinking hats and address this.
I will keep that in mind Veloo. thanks.