The only comment I have is that I have to fault the article for making a lot of assumptions and leaps to conclusions on Banksy’s intentions, it sort of unilaterally declares that Banksy is selling out and cheating the system.
But what they want is far simpler: they don’t want other people claiming they’re Banksy, and they want to remain anonymous.
The article gets upset at Banksy as a corporate sellout as if they opened up a line of art pieces for sale at Walmart or Target. What Banksy did is more akin to opening up a UPS Store mailbox in order to have an address on file.