Two things only I would lightly disagree on.
First is Selune's chosen. That can actually be a great item if you use it on elves/half elves. Since it's a cantrip you can cast it over and over. Can be a nice method to heal out of combat if you are out of or don't want to burn a short rest or potions. Also if you use it with the healer items that grant temporary hitpoints on heal you can buff your squad out with a little extra beef before starting a combat encounter. As a combat item though I would agree, it's not great. Better to just use a potion or healing spell as a bonus action in combat since Selune's dream counts as a full action.

Second would be circlet of blasting. This has a niche on warlocks with Hex or anyone who take warlock initiate and gets Hex. Multi-hit spells like scorching ray are made crazy strong by the extra damage procs from each hit. Using the circlet on a warlock lets you launch a super damaging attack without sacrificing a lvl 2 spell slot to do it with a normal scorching ray. So it isn't entirely useless. I certainly wouldn't be upset if it got a rework on it as your suggestions would give it a more mainstream use.