Agreed, even though I consider wonders more as means of exploiting the terrain for tall cities with a lot of territory and enormous district costs.

Speaking only a about SP.
I typically don't build early wonders, as the AI tend to get them first while I use influence for land-grabbing, buying extractors, harbors, etc. 

1. I'd not find Stonehenge bad at all, as I do like to grow my cities. I wanted to try a new one city challenge, it would something to rush actually.
2. Too situational for my taste, it might be in need of a rework, indeed.
3. I'm not so much a warrior, so tough to analyze. I tend to undervalue WS.
4. There's a bit of faith with the Todai-Ji but, yeah, a bit meh and weak.
5. I actually find it strong. There's 5% industry on it, not even counting the shared project part.
6. If you like not to build any MQ, it gives a good boost to production.
7. Kinda agree too.

Here is a tier list about the cultural wonders in humankind. They are based on the content creator "Square Triangle Mouse". I mostly agree with these placings. For further details, why there are placed there, you can watch his tier list video. 

Man has empire state building which nets 10 gold rated higher than red pyramid and faith wonder and his worst tier is littered with faith buildings which are the cheapest wonders to build due to civics and can be earliest possible hamlets in the game to set on the faraway river clusters. I think it is rather surface vision of wonders as FIMS generators only. The beacon that boosts navy on continents wins you the game because you can control all resource yielding islandic territories with little effort.

My point is, grab a wonder in every era even if it is the worst one FIMS-wise. Because building a religious wonder with a 30% discount on a favorable terrain and getting a good chunk of stability on top is great no matter what. That is my take at least.