You're not bursting any bubbles. When it comes to grab-n-go, Subway is at the top. All fast food is crap, but you can't ague that Subway isn't the "best" nutrition-wise
Most grocery stores are open late, some 24/7. You have plenty of time to go to the deli and get some fresh sliced, non processed meats and some whole grain bread.
You absolutely can argue that it isn't the best. They buy some of the lowest quality, processed meats from Sysco. You will never see a real turkey or chicken breast, or a slab of roast beef, or even a meat slicer in any subway.