Warming Up

Just been reading this article and the bit about windsfield (-screen?) wiper :

T-Nation article : How Not To Warm Up

I know you do or have been doing that warm up exercise alex, what's your thoughts ?

The objection the author has is the same one as I have, I do not do/prescribe the exercise as he describes it (a rotational stretch for the lower back), I use it for a glute medius/adductor stretch/activation exercise, cueing to avoid rotation at the lumbar spine and maximise motion from the hip.

To be honest, I am probably going to swap it out for a different drill anyway, although I do like them for people that can control the torso stabilisers well enough to do it right.