It’s not a popular opinion among preppers, but IMO most stored food should be canned goods.
The only real advantage of freeze-dried foods and even wheat, beans and rice, relative to canned goods, is weight. And unless you plan to be moving that just doesn’t matter. And if you are planning to be on the move you won’t be able to carry much.
Most types of foods other than canned goods require cooking, for which fuel may not be readily available. With canned goods you can always just eat them cold. Also their not needing water is an advantage, IMO.
Obviously shelf life is an issue and your stock should be rotated, but most canned goods can if necessary be safely eaten long after their posted expiration date.
Perhaps most importantly, if purchased in bulk and/or on sale, cost is MUCH lower than most alternatives.
While my stored food has a very large proportion of cans, I don't agree with your advice, at least not for all preppers. I have nearly unlimited fuel and water, live well outside the nearest city, and am not young enough to compete on a level playing field in the woods. I'm not bugging out. For me, freeze-dried and dehydrated are not worth the extra cost to save weight, since I won't be carrying large amounts of food. Others, particularly young and urban, will have different priorities.