Opposition guaranteed for a Grade 1 prize, I would have thought Gearoid. There's little point in the best of the remainder of the 2m novices trying to avoid him beforehand. What other races could they reasonably go for? And besides, why run scared from just the one horse?
I think Dunguib would need to beat the Delloite opposition very convincingly - upwards of a dozen lengths, with the others running their races - for connections to entertain any notion of a Champion Hurdle run. And even then, I'd still expect them to end-up in the Supreme.
If Dunguib were to win, say, 20L then the equation changes a bit, as he would almost certainly have run to the early-160's in doing so. In which case, they might well want to pitch him into the Champion. He really has to murder them in the Delloite though, to have any chance of running in it...imo.