That's impressive shooting, as it always is with Jimmy Blackmon. I think it would be great to have a Las Vegas round with selfbows, if you could get enough people to participate. I've never been there, but one of my friends went a few years back. At that time, maybe still, there was no trad division at all. He had to shoot against people using Olympic style bows with all the gadgets.
I think participation and sponsor interest is really the problem. It costs money to rent the space, set up the targets, keep the scores, etc. If sponsors don't feel like they will get much mileage out of it, then they won't spend their money on it. Sort of like men's vs women's sports. Not fair, but that's life.
I went to a tournament two weeks ago in a beautiful location that was lightly attended because the original date had been rained out. Probably not everyone got the word on the new date or else had already made other plans. Felt sorry for the club that sponsored the event, but it was great for the shooters. Ordinarily, by the middle of the tournament, shooters would have been backed up 2-3 groups at each target, which makes for quite a bit of time wasted. We never waited at any target all day. There was only one other trad shooter there, who I hadn't met before, and we ended up shooting with a family of compound shooters. Had a great time.
They had a clout shoot, a big elk at an unknown distance of about 90 yards or so. The compounders all bought tickets and mainly all hit the elk with most of their shots. The other trad guy and I agreed that it was too bad they didn't have a trad clout at a little closer distance. Then we both realized at the same time that for the trouble of setting up another animal and keeping track of who was closest to the pin, they would have collected an extra $2-$4, depending on whether we decided to shoot one or two rounds, which they would have split with us! Hardly worth the trouble for them to do it.
Of course, if someone like Jimmy Blackmon did go to Las Vegas and won the bare bow division with a trad bow, that would make the news and I'm sure the sponsors would be happy. But that would be unlikely, even for Jimmy. I understand that it is rare for any of the top competitors to miss the 20 yard bullseye, and as good as Jimmy is, as demonstrated with his skill with the self bow, I'm not sure he is up to shooting 30 bullseyes into a silver dollar sized bullseye in a row, even with his regular trad bow.