Think that shows how thin on the ground it is for genuine Champion hurdle level horses atm to me, BDA could be at that level, but so far she doesn't seem to bring her A game to the cotwolds, doesn't leave a lot for Lossie to be tested by at home really, so I suppose until they run her in a CH they'll never really know, and this year it does look very winnable.
Edit - and thats another thing, even if BDA did beat Lossie at the DFR, would that impact on her chances of winning the CH, I don;t think it would personally, but it would give Ricci a get out if he wanted one.