Anything you want to eat is "permitted".
(But I know what you meant.)
In his
April, 2005, newsletter Dr. McDougall recommends against using soy-based fake foods like the "cheese" products you're asking about.
Many of us enjoy nutritional yeast as a condiment. It can lend a cheesy flavor to foods.
(edited to add:) I was not aware of the list of dairy substitutes you posted, Letha. Thanks! The first statement on the page Letha links says, "Most of the cheeses contain a very small amount of isolated soy protein." It's the isolated soy protein that is the issue discussed in the newsletter.