I literally had not seen these foods yet. Some Delish foods (Brave Feed, Loyal Wolf etc) that aren't even available in the CS right now--were some Delish items recently re-classified or something?

Yup!

https://subeta.net/forums.php/gotopost/65693380

As for the items not being in the Cash Shop right now, they do sometimes bring back old Delish sets during the Black Friday sale, or put certain items in the CS Hustler from time to time, so there could still be ways to get them in the future if you can't at the moment (or you could always try to purchase them from someone else, of course).

I certainly hope they do, it doesn't seem fair to put an item in as edible, when it is no longer obtainable. Most people who have these items tend not to want to part with them if they're unobtainable again.