The main thing is that if you do all the suggested things it will do no harm.
There is a big difference between a "manufactured" bow which may have only been taken to full draw a few times and possibly never actually shot and a crafted bow by a bowyer that is doing it himself and may well have put 50 or more arrows through the bow so that the details can be fettled and it can have time to settle down.
The tiller on a bow can shift as it settles down and as it is exercised during tillering, mind this probably applies more to self bows than laminates.
Once I've got a bow tillered I will shoot it from full draw 50-100 times checking it over, adjusting brace height, arrow pass, nocks etc, but I rarely "warm up" a bow.
Del