Actually, I doubt that they are doing it deliberately, but I may be wrong in some cases. I just think they don't do their homework, or perhaps they are just oblivious to everything else that goes on in the pool world.
Last year, they had tentatively scheduled an event in Washington, DC over the same weekend in December as our Planet Pool year-end finals just down the road in Rockville. Charlie was very surprized when I told him that at Valley Forge in 2004. The fact is, had they actually gone ahead and had that event (it was cancelled altogether), it would not have affected us as we expected (and got) 120 players anyway. If at all, it would have hurt them, not us. I'd think the same with this DCC schedule conflict...