I think Banksy would totally approve of this.
Plus the “painted over Banksy” is likely now worth even more. Ha.
I thought the same thing. Banksy previously shredded one of his works of art at auction
https://www.youtube.com/watch?v=eXKE0nAMmg4
What better way to show the present confluences of "modern art" - street art, destroyed by an offbeat, cult character actor, in a hyped entertainment/TV spectacle?
Banksy approved of what happened. They got his okay to do it