Did it for a time (maybe not long enough), didn't notice much effect. Kept some of ideas around (ball on the butt against a wall seems to help my back when it acts up for instance), discarded others. What I've found with flexibility/mobility/rehab/prehab type shit is that there are so many different things you can spend time on, and if you just include all elements of such routines indiscriminately, you will waste time.
I have come to believe more in tailoring such routines for the individuals. Some need special hip warm-ups before squats, some need shoulder warm-ups before various pressing exercises, some need to stretch their hamstrings so they don't wind up in flexion as often, etc. You try some of these things for whenever some problem pops up, and keep it around if you notice it helping, otherwise you're wasting time you could be spending on something more productive. The agile 8 does take some time after all. Time you could spend on bis and tris after the main movements instead of on warmup.