Since the BA38 crew, unknowingly, flew a: "Green Approach" (idle
Surely you're joking right ?? Unknowingly ??? This approach has been going on since basically .........the ice age !! I find myself repeating " Roger, 160 kt til 4 DME " in my sleep.
Since you are coming from 210 kt down to 180 kt and requested to keep 160 kt til 4, this is basically a green approach.
I suggest that, like the rest of us, you wait for the final report instead you make any phony assumptions.