The Scientific American article you listed writes:
Wood and Harrison do not dismiss Ardipithecus as a possible human ancestor, but they note that, "it remains to be seen how many of these alleged hominin synaphomorphies will withstand close scrutiny." They encourage other paleoanthropologists to "acknowledge the potential shortcomings of their data when it comes to generating hypotheses about relationships," and accept that with current fossil evidence and analysis, we might not be able to know for sure whether or not Ardi was a hominin.
It doesn't say that ardi isn't a hominid, just that there is not enough evidence to say yes or no, which is the norm in scientific investigation. It is just asking that no point be made that such is where the such is is not verified.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008
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