The article starts with the statement that it takes no skill to ice the puck. Except it often takes skill and anticipation to get the puck on the pk and quite a few icing attempts end up on the stick of the Dman at the point. So, I have to disagree with the that.
The intended benefit is to unleash the potential of kids on the PK who will start making sweet plays to get out of their zone. Of course, given the state of coaching throughout most of the youth level, they can barely teach the game as it is without making it tougher on a less skilled team. If coaching was good, this wouldn't be a problem in the first place as teams would be breaking out when then can and not just continually icing the puck.
The likely consequence, especially as its for younger kids, is that the kids will try to do it themselves and simply get stripped of the puck. Or this will lead to plenty of cross ice D zone passes that will end up in the back of the net. Most of the coaching will stay the same and it will just be that much easy for better teams to score on the PP.
It really punishes the teams that face mismatches already and increases the damage that poor officiating does in games.