Personally I think it would be a more interesting sport if they moved the targets a bit further downrange as well as a few other things. From what I've seen you could just about touch them with a long stick. I suppose it's all about having fun but wouldn't fun favor classic one-handed shooting and more... standard loads?
One hears that sentiment a lot. Partly from folks who don't shoot it now, and partly from folks who do, but don't do it very well. Every once in a while, a club will actually try it. They'll move the targets out, or they'll make you run more than two or three steps, or some such. It never lasts, though, because the minute they do, the grumbling starts among those that
do shoot, that is, the customers. If the situation persists, attendance falls off. The club either withers, or puts the word around that they're back to running cowboy matches, not cowboy bullseye or cowboy track and field.
Edited to add: For the brief period those matches do run, the results are interesting. Lots of midpack shooters feel that they'd do better if accuracy were more tested, rather than "just speed." The results don't bear it out, though. Making a match more technically demanding doesn't narrow the gap between the top and the middle, it widens it. It turns out, you don't get to be a top shooter by not knowing how to shoot.
However, all that said, if you want to shoot standard loads, one handed, come on out. There's even a couple of categories for you: Duelist gets you one handed, Classic Cowboy gets you .40 cal and up shot one handed, and Frontier Cartridge Duelist gets you traditional gunpowder propellants, shot one handed. If you think the targets are too easy to hit, just shoot faster. Pretty soon, they ain't.
PS - Almost forgot to address to OP. These guys are right, factory cowboy loads are loaded to the light end of the spectrum.