My Tent Or Yours is a big stats negative. There have been 83 Champion Hurdles, and none of them had their final race before the Champion Hurdle in a Jumpers Bumper.
You could indeed interpret it this way by looking blindly at the stat you identified. However if you looked more closely you'd see that that stat is completely untrue and misguiding. The Bumpers for Jumpers initiative from the BHA really only came to fruition in late 2010 early 2011 as a result of the terrible weather we had that winter.
As a result it was impossible for 80 of the 83 winners of the champion hurdle you identified to run in something which simply didn't exist. The correct stat should read that 0/3 champion hurdlers have had their final prep race in a jumpers bumper and indeed the twice successful Irish trained Hurricane Fly wouldn't have that option in Ireland as they don't exist here so that puts a slightly different gloss on it.
With the way the weather seems to be influenced by the effects of global warming, we could see a lot more top class animals use this great initiative to stay fit in the run up to big festivals. In The first 2 weeks of February alone 14 meetings were lost both sides of the Irish Sea.
Fair play to the BHA.