Because the brokers are the ones who sold their shares into the market. The brokers are the ones responsible for compliance and they are named.
This was pointed out a couple months ago. They are also the ones who sent due bills for shares not eligible for the divy. Nobillis and Beaufort could get added at any time, but it must first be established that they broke rules by converting debt. Did they actually break any rules or was it the Agencies that allowed the sale and then submitted due bills to COR ?