That’s just an entrance portal. Look at how tiny it is. The real activity is all underground where you don’t even need to bother with soundproofing.
I, too, am dubious of the soundproofing notion.
Lessay scores of people were screaming their heads off to high heaven:
The man owns the entire ISLAND, for crying out loud:
Why the need..?
This is ALSO why transgender CR*P is being shoved down our throats by Hollywood, the media, some elements within our military, DC, etc..