HAHAHAH
There are so many things wrong with everything you are saying.
First, why do people have to ski with poles? so one person has a 3 foot piece of alluminum in their hands, that makes it skiing, and without that, it's not? sooo, is it a different sport if someone decided not to use a hat or goggles? what if someone decided to not wear ski clothing? It's not a fucking different sport you tool, it's still fucking skiing, poles or no. 
Are Pep and Andy suddenly not skiers?
Second, How does a worthless peice of alluminum, (which increase your ability to balance, help when you spin, essentially make people look better/quiet their upper body when they ski) make it HARDER? have you ever skied without poles? do you realize how much harder it is to make things look good, slide rails, keep your body composed?
Basically, itshouldn't matter. the judges should judge on skiing skill, not wether or not people use poles, which are completely unnessesary in park skiing.