As others have said, articles like this mean nothing until published in a peer review journal.
The terminology used makes it sound more chemical/technical/scary, but hydrolyzed gelatine is just another name for normal everyday gelatine - the same stuff you make jelly with. It is used as a filler in a heap of things, from antacids to make-up and as a thickener in jams, lollies etc. It is food additive number E441. Glycine is a by-product of gelatine and is used as an artificial sweetener and is present in vitamin tablets, sports drinks and analgesics.
I would assume that if it were the Gelatine in the vaccinations causing autism that there would be a similar trend of higher autism rates in babies that have regular antacid medication for reflux and in babies born to mothers who consumed vitamins during the pregnancy.
Speaking as a chemist, this report doesn't appear to hold much water. But the writer is to be congratulated on making it sound fancy, it does have a wow factor.