I read the story and didn't notice anything about rejecting candidates due to their age. He mentioned the ages of a couple, but it didn't seem like anyone was ruled out because of it.
It is an obvious remark to older male, unemployed, married or divorced, and hungry for work.
That said, there was at least one explicit age reference fairly early on. It put me on edge. But not a lot more was made of it in the article, and I had some sense that a fair number of the candidates invited for interviews were at least middle-aged.
"Dad" was reject because: "The last guy was 15 minutes late, full of himself, and he wants the moon. I’m not asking him back."