Benchmark against the best linux performing driver as reference.There is absolutely no legitimate justification for the way you handled this benchmark. Proprietary NVIDIA vs. Open-Source ATI is not a fair comparison, and the lack of fglrx, nv, and nouveau, etc. make your intentions quesitonable.
Nothing misleading about it. However your statement saying fglrx may even out perform it would be misleading.You have the responsibility of giving people information that is not misleading. fglrx is the equivalent to nvidia's proprietary driver and may even outperform it.
Nothing rigged about it. Again read the article. The ion, for all intense purposes is the better solution at the moment of taking the benchmarks. Again read the article.Many people will assume ION is better than 4330 wihtout the knowledge to realize your test was seriously rigged.
The only thing misleading are the comments that the article was rigged because it is painfully obvious that they did not read the damn thing.