What? They absolutely massacre the sound, lowers the volume and blocks out anything but the bass. They fit terribly too.
I have a pair of Alpine MusicSafe Pro which I got for $30 for a two day festival. They’re night and day compared to anything you can buy at the venue or at a pharmacy. They lower the volume without muffling anything, and allows you to pick how aggressively they should block the sound.
It’s also not even censorship. A private company having a policy is not the same as news papers not being allowed to publish whatever they wish.
But neither that or that it’s not a shower thought doesn’t matter, capitalism bad.