Schema has the same problems as Microformats where adoption only takes off if the market demands it, or it gains enough momentum that people can't imagine webapps without them.
There are countless other standards this article overlooks which have been implemented very well in recent years in Gmail, so why does it lambast the lack of Schema?
There are countless other standards this article overlooks which have been implemented very well in recent years in Gmail, so why does it lambast the lack of Schema?