Let’s ask the experts.
I am not a fan of such kits. One of the reason and a lot of this stuff you can pick up in bulk at a store and even after buying bags and oxygen absorbers put it up yourself cheaper a good exaxample would be mash potato flakes and dehdrated hash browns.In fact I dehyrated some of my own food and prep it for long term storage in mylar or vaccum pack in canning jars.
The second reason goes like this, say the kit comes with 8 entrees A,B,C,D,E,F,G and H. Now you really like A and C,E and G are good, but B and H you are barely able to choke down, leaving D and F which you wouldn’t eve feed to a zombie! That means you will more and likely eat the good stuff first leaving you with 50% of your food storage that you hate or gags you when you try and put it down. That would get old pretty quick.
Having the makings rather than prepared meals allow you a lot more varity and limits food fatigue.
That’s my two cents.