I think the title says it all. "Semi-Homemade" (disclaimer - I don't think I've ever actually seen any of her shows, at least not that I can remember).
There was a time, when more as women joined the work force, who had children at home, many husbands still expected a hot meal on the table for supper, to be cooked by her as soon as she got home.
In the 60's and well into the 70's before "foodies" became a thing, cans in the casserole were well received and wanted. So although all that was well before her time, there are still plenty of people, men and students included, who welcome "open a can of this and dump in with that and presto! dinner's ready!"
JMHO