I'm not convinced yet... and when I looked up reports, the inital reports said that the remains of 6 individuals were found:
[news.bbc.co.uk]

Microcephaly exists, BUT the associated physical problems and the associated profound retardation would produce a human that was so "high maintenance" that there seems little chance of her surviving to full adulthood. Many have difficulty walking or taking care of themselves, and even under the best of modern medicine their life expectancy is in the early 20's:
[www.ncbi.nlm.nih.gov]

They were found along with sophisticated tools: [www.sciencedaily.com]

I'm not convinced.