If I've understood him right, he thought that taking the wheel as soon as it is seen to be out of position was the right thing to do, with which I respectfully disagree.
Dozy, with respect, in some situations it is mandatory, and sooner rather than later. Entire curricula are devoted to such things in CRM training, multi place pilot training, and training as an instructor pilot.
Sometimes, just take it, fly the plane back into its performance zone, then talk about it after all is settled and you are back to straight and level, or back on the ground.
Other times, talk the other pilot back into the box.
It Depends Upon The Situation
I have done both. I have had a plane or two taken from me as well.
In a few of above cases, more than one life was saved.
Had some Real Close Calls in between.