As shown in the following code, the /hunger command requires permission level 4, rendering it unable to be used in command blocks. Many other commands that strictly only modify player and world data (like /xp, /reload, /summon, /data) only require permission level 2 and are able to be used in command blocks. Why is that the case and can the /hunger command be changed to require permission level 2 and work in command blocks like other similar commands?

Was probably copied from somewhere without realizing what it meant. Will happily accept a PR that fixes this.