Nope. I think this is down to ignorance amongst drivers (rather than impatience) and pedestrians. I'm not sure I was aware of this for several years after passing my test.
I fully approve of the changes. Pedestrians should be treated with a lot more consideration.
This was the previous wording in the highway code (Rule 170):
"watch out for pedestrians crossing a road into which you are turning. If they have started to cross they have priority, so give way"
So it only applied if a pedestrian was already in the road and just to vehicles turning into a...