The reason I would not eat these corporate vegan foods is they are not healthy. They are filled with almost literal garbage. They are in no way healthful or worth eating other than for religious reasons.
Aside from that, veganism is not a healthy dietary option in general. Adults can survive on such a debased diet for a while (though evidence shows most vegans backslide as they are not getting enough nutrition), but itโs actively dangerous for kids and those with chronic illnesses.
Veganism is a religion, really, masquerading as a diet. And corporate veganism is even worse.