I can see why this grew on you. It's a catchy theme. My tolerance for modern idioms has grown over the years, and though I would never write in this style myself, I don't hate it as I once did. What I have noticed, though, is that I find this sort of writing works best in short pieces, and that's probably part of why I like this. As Quinn mentioned above, it's very coherent, and I personally find it doesn't overstay its welcome.
Though I'm not a wind or brass player, it does seem to me that this would be extremely challenging, especially for the horn player. And unfortunately, if not played precisely much of the effectiveness would likely be lost. But it certainly isn't impossible to find chamber groups willing to include brief pieces like this in their programs, and if that ever happens I hope you'll share the recording here. I'd be interested to hear it.