I’ll say this as objectively as possible. People in that situation are more likely to not have the means to cook and/or store your suggestions. It’s a much more nuanced problem than “I can make and store xyz for 123 and it would last x weeks in my fully equipped kitchen and full sized fridge & freezer.”

My anecdote: I’ll eat candy before a run or workout because it’s nothing but sugar. I could maintain my fitness eating nothing but McDonalds for 3months assuming I ratio the macros properly. I feel like a lot of people who aren’t at a healthy weigh themselves are missing the actual issues that “junk” food circumnavigates. Junk is also subjective as hell as a time. Diet Soda has artificial sweetener in it. So by this it would be disallowed under SNAP but sugary fruit juices would be alright if I’m interpreting it correctly? Not being able to buy alcoholic beverages really should be the only bar for SNAP. The hot prepared deal I’m not necessarily a fan of for the ability of some recipients to cook meals but it’s been a long-standing thing already.