In the article they make mention of other large babies born all over the world. The largest recorded baby was born to Anna Bates in Canada in 1879. The baby weighed 23lbs 12oz (10.8kg) and measured 30" (76.2cm) in length.
I thought this was really crazy so I looked it up and what the media hype leaves out is that Anna Bates was a giant. She was about 8 feet tall and worked for PT Barnum until she met Martin Van Buren who himself was no little dude coming in at 7 feet 22". He was also known as the 'Kentucky Giant'.
Anna and Martin Van Buren pictured with a man of average height
These gigantic people would of course have genes that preclude gigantic children. Sadly neither of their children survived (perhaps due to a genetic problem?)