Of course they aren't because it makes zero technical, economic or product sense to literally serve hundreds of thousands of pages to people. Everyone understands the number to mean something like the rough popularity of the query. I don't think I've ever seen an angry protester in front of the Googlplex complaining they couldn't actually get to page 250k undertaking some sort of Jules Verne-esque journey to the center of the earth.

The post is basically a one year old ad for an alternative search product