This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
If it were that easy then it wouldn’t be an issue.
I made that same observation some time back and the answer I got was: money.
Why spend the money to develop a technology to harvest a mineral from the sea with probably minimal to no impact to the environment when you can simply use already existing tech and just open a hole in the ground?