What is it about the 'glass' dock sculptures on Miles Bron's private island that would make Lionel think that it was made by Banksy? Why would they actually be by Banksy?

I'm not super familiar with the art world, but I'm under the impression that Banksy makes art that is populist and anti-establishment, like murals in public places or paintings that shred themselves when sold at auction. While the implication seems to be that Bron is so wealthy he can buy the unbuyable, it doesn't seem to fit Banksy's persona. (Though it's possible that the dock only being accessible at low tide could be intentional.)

In Glass Onion: A Knives Out Mystery, what is it about the 'glass' dock sculptures on Miles Bron's private island that would make Lionel think that it was made by Banksy? Why would they actually be by Banksy?

I'm not super familiar with the art world, but I'm under the impression that Banksy makes art that is populist and anti-establishment, like murals in public places or paintings that shred themselves when sold at auction. While the implication seems to be that Bron is so wealthy he can buy the unbuyable, it doesn't seem to fit Banksy's persona. (Though it's possible that the dock only being accessible at low tide could be intentional.)