The request wasn't (only) asking for a solution by the CAs but by the '"SSL All The Things!" crusaders' which includes creators of browsers and mobile devices enforcing stricter rules and a request to take these things into more consideration.
In my words: We need solutions for non-technical individuals to run a somewhat secure environment locally without being confronted with security warnings everywhere. A CA can play a role in that, but probably not fully solve it.
The request wasn't (only) asking for a solution by the CAs but by the '"SSL All The Things!" crusaders' which includes creators of browsers and mobile devices enforcing stricter rules and a request to take these things into more consideration.
In my words: We need solutions for non-technical individuals to run a somewhat secure environment locally without being confronted with security warnings everywhere. A CA can play a role in that, but probably not fully solve it.