This is a nice little correction, like they did for Campus's and the Great Barrier Reef, that they finally gave a major adj bonus too. I still think it is unfortunate they count as these "weird 'other' tiles" and don't always have a base tile.

Like Chocolate Hills/Ik-Kil not counting as Jungle tiles (the later not even being passable is weird,) Pantanal/Ubsunur Hollow not counting as Marsh tiles (or the later even as Tundra tiles,) or Cliffs of Dover not counting as a Grassland (or could be the edge of a Coastal tile.) BUT that Crater Lake counts as a Lake tile (but not Fountain of Youth) & same with Lake Retba/Dead Sea/Great Barrier Reef/Ha Long Bay ALL count as Coastal Tiles (but not Bermuda Triangle, it's not even considered an Ocean tile,) & even Sahara elBeyda/Eye of the Sahara count as a Desert tiles.

I mean in terms of adding yields to the tiles from buildings or wonders or pantheons. So inconsistent.

It does exactly what it says in the description, nothing else.

Does this also allow you to build terrace farms next to them/provide adjacency bonuses for them?

Does it work with modded Naturel Wonders? Since there are few mods adding Naturel Wonders, I don't think it would be too much work to add them :)
Anyway, thank you for this tweak!

Hmm, I'll look into that, but I'm not sure if it will be possible. Good suggestion though!

What about being able to provide fresh water to aqueducts?

Good

Was going to make a mod like this myself, looks like you've saved me a load of work! Thanks :)