More like that jury reached their verdict because the evidence was incomprehensible to them, having been thoroughly obfuscated by the defense. "We haven't a clue, so we can't convict."
You're being awfully kind to the OJ jury. How about, "Johnnie put the word in Fuhrmann's mouth, so we refuse to convict this black man, this Race Man, and we don't care how many beast people he stiffed or how many Oreos are on the prosecuting team"?
Perhaps, but that is a different matter from nullification. The jury didn't arrive at their verdict because they disagreed with the law against murder or found it unjust.