The need for a legislative cap is just as much an indication that (to quote the article) "the market is not working well", as the rise itself in the absence of

The need for a legislative cap is just as much an indication that (to quote the article) "the market is not working well", as the rise itself in the absence of the cap. Why not work to fix the market instead? Or nationalise it, since there's really nothing for intermediaries to compete on any more.