Not a new discussion here at all. Bottom line is if someone wants to bad enough, they can paper anything as an Angus (or any other breed, for that matter) - in a steer show where 10th place steers can bring $8 a pound, there'll be plenty of those someones... DNA testing that many steers would be very costly and time consuming - they're steers, the Angus Association (national or state) isn't going to care enough to foot the bill, and the shows aren't going to, either. Besides, this way there is one simple uniform requirement for all the steers - visual classification, period. I do agree that it seems strange that one can be "too good", but that's really no worse than not allowing Herefords with eye pigment or solid black Simmentals, either.
If this is so bad, what do other states do? Does anything with a set of registration papers get to show? Do you DNA test? If so when, and who foots the bill? And how many steers are there in the Angus divisions of your state shows?
We had a recent discussion down in the classifieds about classifying Angus steers in OK (here they just have to be out of a registered Angus cow, can be sired by anything - yes, that means 1/2 bloods, and it also means we have a nice sized, competitive Angus steer show instead of the handful we got when they had to be registered).