Anyone who has ever actually bit into a real piece of chicken and Subway chicken knew from the start that Subway chicken was not real chicken. Too spongy, even for dried overcooked chicken patties.
Its sort of like cooking a nice omlette made with eggs at home vs having one of those reconstituted dehydrated egg ones, you know something is off.
Subways were always kinda goofy because of all the fast foods out there, a subway sammich is one of the easiest to replicate at home with better ingredients for a similar price. Some stuff like Croissants or Fried Chicken I'll give that the homemade from scratch version is a huge pain in the ass but a sando? Come on!