While U+A66E multiocular O can be found in just one manuscript, and it is still in Unicode: https://en.wikipedia.org/wiki/Multiocular_O

Honestly, I wouldn't have thought that would be an issue to the Unicode folks. They have already allowed things (emoji) that have no place being in the standard, as they aren't even text.

I feel like Apple pushed the consortium to add a ton of useless emojis for whatever their own reasons were.

According to a sibling to what you replied to, it's because the shapes of the glyphs are still under copyright by known-litigious rightsholders and the Unicode consortium doesn't want to subject font authors to that.

I would wonder how many people are here who have never seen Tengwar. I would bet that's a minuscule minority.

I've never even heard of it before.

That's a higher bar than having seen it, I think. I also had to look it up, but as soon as I saw the images in Wikipedia I knew that it's from Lord of the Rings.

It is. But the even higher bar is that you actually write in this script.

Looks like Georgian