Kelp & Seagrass can generate in aquifers

Hello, MOJANG

There is a bug, in minecraft that I just figured out.
Underwater features such as Kelp & Seagrass are able to generate in aquifers
Pretty sure its a bug, I don't think thats really intentional. Since I don't see a point for that.

Reproduce

seed: -3631726232884282409
coordinates: /tp @s -263 12 125